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Finding the Fourth Proportional to 500,385.87, 750,599.73 and 145,399.93

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Solution

The fourth proportional to 500,385.87, 750,599.73 and 145,399.93 is: 218,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,385.87 : 750,599.73 = 145,399.93 : x
  2. Step 2: Convert to fraction form
    500,385.87/750,599.73 = 145,399.93/x
  3. Step 3: Cross multiply
    500,385.87x = 750,599.73 × 145,399.93
  4. Step 4: Simplify right side
    500,385.87x = 109,137,146,323.52
  5. Step 5: Solve for x
    x = 109,137,146,323.52/500,385.87
  6. Step 6: Final answer
    x = 218,105.97

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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.