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Finding the Fourth Proportional to 425,264.41, 638,021.20 and 125,752.76

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Solution

The fourth proportional to 425,264.41, 638,021.20 and 125,752.76 is: 188,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,264.41 : 638,021.20 = 125,752.76 : x
  2. Step 2: Convert to fraction form
    425,264.41/638,021.20 = 125,752.76/x
  3. Step 3: Cross multiply
    425,264.41x = 638,021.20 × 125,752.76
  4. Step 4: Simplify right side
    425,264.41x = 80,232,928,119.18
  5. Step 5: Solve for x
    x = 80,232,928,119.18/425,264.41
  6. Step 6: Final answer
    x = 188,665.98

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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.