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Finding the Fourth Proportional to 513,385.46, 769,796.31 and 158,300.90

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Solution

The fourth proportional to 513,385.46, 769,796.31 and 158,300.90 is: 237,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,385.46 : 769,796.31 = 158,300.90 : x
  2. Step 2: Convert to fraction form
    513,385.46/769,796.31 = 158,300.90/x
  3. Step 3: Cross multiply
    513,385.46x = 769,796.31 × 158,300.90
  4. Step 4: Simplify right side
    513,385.46x = 121,859,448,689.68
  5. Step 5: Solve for x
    x = 121,859,448,689.68/513,385.46
  6. Step 6: Final answer
    x = 237,364.43

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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.