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Finding the Fourth Proportional to 493,891.31, 740,759.73 and 156,887.63

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Solution

The fourth proportional to 493,891.31, 740,759.73 and 156,887.63 is: 235,306.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,891.31 : 740,759.73 = 156,887.63 : x
  2. Step 2: Convert to fraction form
    493,891.31/740,759.73 = 156,887.63/x
  3. Step 3: Cross multiply
    493,891.31x = 740,759.73 × 156,887.63
  4. Step 4: Simplify right side
    493,891.31x = 116,216,038,439.14
  5. Step 5: Solve for x
    x = 116,216,038,439.14/493,891.31
  6. Step 6: Final answer
    x = 235,306.91

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1.5x scale

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.