Home / 425,899.18-638,710.56-141,513.37

Finding the Fourth Proportional to 425,899.18, 638,710.56 and 141,513.37

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Solution

The fourth proportional to 425,899.18, 638,710.56 and 141,513.37 is: 212,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,899.18 : 638,710.56 = 141,513.37 : x
  2. Step 2: Convert to fraction form
    425,899.18/638,710.56 = 141,513.37/x
  3. Step 3: Cross multiply
    425,899.18x = 638,710.56 × 141,513.37
  4. Step 4: Simplify right side
    425,899.18x = 90,386,083,982.99
  5. Step 5: Solve for x
    x = 90,386,083,982.99/425,899.18
  6. Step 6: Final answer
    x = 212,224.13

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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.