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Finding the Fourth Proportional to 504.19, 695.82 and 283.15

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Solution

The fourth proportional to 504.19, 695.82 and 283.15 is: 390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.19 : 695.82 = 283.15 : x
  2. Step 2: Convert to fraction form
    504.19/695.82 = 283.15/x
  3. Step 3: Cross multiply
    504.19x = 695.82 × 283.15
  4. Step 4: Simplify right side
    504.19x = 197,021.43
  5. Step 5: Solve for x
    x = 197,021.43/504.19
  6. Step 6: Final answer
    x = 390.77

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.