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Finding the Fourth Proportional to 250,727.10, 375,737.01 and 138,457.86

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Solution

The fourth proportional to 250,727.10, 375,737.01 and 138,457.86 is: 207,491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,727.10 : 375,737.01 = 138,457.86 : x
  2. Step 2: Convert to fraction form
    250,727.10/375,737.01 = 138,457.86/x
  3. Step 3: Cross multiply
    250,727.10x = 375,737.01 × 138,457.86
  4. Step 4: Simplify right side
    250,727.10x = 52,023,742,327.40
  5. Step 5: Solve for x
    x = 52,023,742,327.40/250,727.10
  6. Step 6: Final answer
    x = 207,491.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.