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Finding the Fourth Proportional to 425,509, 638,372.88 and 159,273.36

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Solution

The fourth proportional to 425,509, 638,372.88 and 159,273.36 is: 238,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,509 : 638,372.88 = 159,273.36 : x
  2. Step 2: Convert to fraction form
    425,509/638,372.88 = 159,273.36/x
  3. Step 3: Cross multiply
    425,509x = 638,372.88 × 159,273.36
  4. Step 4: Simplify right side
    425,509x = 101,675,793,530.48
  5. Step 5: Solve for x
    x = 101,675,793,530.48/425,509
  6. Step 6: Final answer
    x = 238,950.98

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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.