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Finding the Fourth Proportional to 425,074.78, 637,710.54 and 144,592

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Solution

The fourth proportional to 425,074.78, 637,710.54 and 144,592 is: 216,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,074.78 : 637,710.54 = 144,592 : x
  2. Step 2: Convert to fraction form
    425,074.78/637,710.54 = 144,592/x
  3. Step 3: Cross multiply
    425,074.78x = 637,710.54 × 144,592
  4. Step 4: Simplify right side
    425,074.78x = 92,207,842,399.68
  5. Step 5: Solve for x
    x = 92,207,842,399.68/425,074.78
  6. Step 6: Final answer
    x = 216,921.46

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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.