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Finding the Fourth Proportional to 425,614.29, 638,669.82 and 236,233.59

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Solution

The fourth proportional to 425,614.29, 638,669.82 and 236,233.59 is: 354,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,614.29 : 638,669.82 = 236,233.59 : x
  2. Step 2: Convert to fraction form
    425,614.29/638,669.82 = 236,233.59/x
  3. Step 3: Cross multiply
    425,614.29x = 638,669.82 × 236,233.59
  4. Step 4: Simplify right side
    425,614.29x = 150,875,264,403.25
  5. Step 5: Solve for x
    x = 150,875,264,403.25/425,614.29
  6. Step 6: Final answer
    x = 354,488.25

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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.