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Finding the Fourth Proportional to 498,250.70, 747,485.40 and 161,306.90

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Solution

The fourth proportional to 498,250.70, 747,485.40 and 161,306.90 is: 241,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,250.70 : 747,485.40 = 161,306.90 : x
  2. Step 2: Convert to fraction form
    498,250.70/747,485.40 = 161,306.90/x
  3. Step 3: Cross multiply
    498,250.70x = 747,485.40 × 161,306.90
  4. Step 4: Simplify right side
    498,250.70x = 120,574,552,669.26
  5. Step 5: Solve for x
    x = 120,574,552,669.26/498,250.70
  6. Step 6: Final answer
    x = 241,995.75

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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.