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Finding the Fourth Proportional to 629.03, 943.55 and 238.98

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Solution

The fourth proportional to 629.03, 943.55 and 238.98 is: 358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.03 : 943.55 = 238.98 : x
  2. Step 2: Convert to fraction form
    629.03/943.55 = 238.98/x
  3. Step 3: Cross multiply
    629.03x = 943.55 × 238.98
  4. Step 4: Simplify right side
    629.03x = 225,492.82
  5. Step 5: Solve for x
    x = 225,492.82/629.03
  6. Step 6: Final answer
    x = 358.48

Related Problems

Find fourth proportional to 314.52, 471.77 and 119.49
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.