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Finding the Fourth Proportional to 234,957.69, 324,242.10 and 139,483.53

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Solution

The fourth proportional to 234,957.69, 324,242.10 and 139,483.53 is: 192,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,957.69 : 324,242.10 = 139,483.53 : x
  2. Step 2: Convert to fraction form
    234,957.69/324,242.10 = 139,483.53/x
  3. Step 3: Cross multiply
    234,957.69x = 324,242.10 × 139,483.53
  4. Step 4: Simplify right side
    234,957.69x = 45,226,432,682.61
  5. Step 5: Solve for x
    x = 45,226,432,682.61/234,957.69
  6. Step 6: Final answer
    x = 192,487.56

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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.