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Finding the Fourth Proportional to 607.46, 838.41 and 358.76

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Solution

The fourth proportional to 607.46, 838.41 and 358.76 is: 495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.46 : 838.41 = 358.76 : x
  2. Step 2: Convert to fraction form
    607.46/838.41 = 358.76/x
  3. Step 3: Cross multiply
    607.46x = 838.41 × 358.76
  4. Step 4: Simplify right side
    607.46x = 300,788.72
  5. Step 5: Solve for x
    x = 300,788.72/607.46
  6. Step 6: Final answer
    x = 495.16

Related Problems

Find fourth proportional to 303.73, 419.20 and 179.38
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.