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Finding the Fourth Proportional to 500,170.46, 750,329.48 and 145,138.32

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Solution

The fourth proportional to 500,170.46, 750,329.48 and 145,138.32 is: 217,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,170.46 : 750,329.48 = 145,138.32 : x
  2. Step 2: Convert to fraction form
    500,170.46/750,329.48 = 145,138.32/x
  3. Step 3: Cross multiply
    500,170.46x = 750,329.48 × 145,138.32
  4. Step 4: Simplify right side
    500,170.46x = 108,901,560,173.67
  5. Step 5: Solve for x
    x = 108,901,560,173.67/500,170.46
  6. Step 6: Final answer
    x = 217,728.89

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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.