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Finding the Fourth Proportional to 474.76, 654.42 and 358.12

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Solution

The fourth proportional to 474.76, 654.42 and 358.12 is: 493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.76 : 654.42 = 358.12 : x
  2. Step 2: Convert to fraction form
    474.76/654.42 = 358.12/x
  3. Step 3: Cross multiply
    474.76x = 654.42 × 358.12
  4. Step 4: Simplify right side
    474.76x = 234,360.89
  5. Step 5: Solve for x
    x = 234,360.89/474.76
  6. Step 6: Final answer
    x = 493.64

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Find fourth proportional to 237.38, 327.21 and 179.06
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Double scale
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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.