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Finding the Fourth Proportional to 545.34, 751.62 and 474.96

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Solution

The fourth proportional to 545.34, 751.62 and 474.96 is: 654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.34 : 751.62 = 474.96 : x
  2. Step 2: Convert to fraction form
    545.34/751.62 = 474.96/x
  3. Step 3: Cross multiply
    545.34x = 751.62 × 474.96
  4. Step 4: Simplify right side
    545.34x = 356,989.44
  5. Step 5: Solve for x
    x = 356,989.44/545.34
  6. Step 6: Final answer
    x = 654.62

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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.