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Finding the Fourth Proportional to 335,630.87, 503,445.69 and 99,139.62

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Solution

The fourth proportional to 335,630.87, 503,445.69 and 99,139.62 is: 148,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,630.87 : 503,445.69 = 99,139.62 : x
  2. Step 2: Convert to fraction form
    335,630.87/503,445.69 = 99,139.62/x
  3. Step 3: Cross multiply
    335,630.87x = 503,445.69 × 99,139.62
  4. Step 4: Simplify right side
    335,630.87x = 49,911,414,397.24
  5. Step 5: Solve for x
    x = 49,911,414,397.24/335,630.87
  6. Step 6: Final answer
    x = 148,709.25

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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.