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Finding the Fourth Proportional to 297,712.70, 447,454.84 and 140,051.87

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Solution

The fourth proportional to 297,712.70, 447,454.84 and 140,051.87 is: 210,494.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,712.70 : 447,454.84 = 140,051.87 : x
  2. Step 2: Convert to fraction form
    297,712.70/447,454.84 = 140,051.87/x
  3. Step 3: Cross multiply
    297,712.70x = 447,454.84 × 140,051.87
  4. Step 4: Simplify right side
    297,712.70x = 62,666,887,082.55
  5. Step 5: Solve for x
    x = 62,666,887,082.55/297,712.70
  6. Step 6: Final answer
    x = 210,494.50

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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.