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Finding the Fourth Proportional to 425,306.93, 637,939.19 and 159,047.87

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Solution

The fourth proportional to 425,306.93, 637,939.19 and 159,047.87 is: 238,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,306.93 : 637,939.19 = 159,047.87 : x
  2. Step 2: Convert to fraction form
    425,306.93/637,939.19 = 159,047.87/x
  3. Step 3: Cross multiply
    425,306.93x = 637,939.19 × 159,047.87
  4. Step 4: Simplify right side
    425,306.93x = 101,462,865,374.09
  5. Step 5: Solve for x
    x = 101,462,865,374.09/425,306.93
  6. Step 6: Final answer
    x = 238,563.87

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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.