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Finding the Fourth Proportional to 425,093.88, 637,724.94 and 121,490.76

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Solution

The fourth proportional to 425,093.88, 637,724.94 and 121,490.76 is: 182,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,093.88 : 637,724.94 = 121,490.76 : x
  2. Step 2: Convert to fraction form
    425,093.88/637,724.94 = 121,490.76/x
  3. Step 3: Cross multiply
    425,093.88x = 637,724.94 × 121,490.76
  4. Step 4: Simplify right side
    425,093.88x = 77,477,687,631.55
  5. Step 5: Solve for x
    x = 77,477,687,631.55/425,093.88
  6. Step 6: Final answer
    x = 182,260.18

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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.