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Finding the Fourth Proportional to 475,011.57, 655,491.62 and 260,147.03

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Solution

The fourth proportional to 475,011.57, 655,491.62 and 260,147.03 is: 358,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,011.57 : 655,491.62 = 260,147.03 : x
  2. Step 2: Convert to fraction form
    475,011.57/655,491.62 = 260,147.03/x
  3. Step 3: Cross multiply
    475,011.57x = 655,491.62 × 260,147.03
  4. Step 4: Simplify right side
    475,011.57x = 170,524,195,505.80
  5. Step 5: Solve for x
    x = 170,524,195,505.80/475,011.57
  6. Step 6: Final answer
    x = 358,989.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.