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Finding the Fourth Proportional to 475,131.17, 655,681.13 and 260,278.87

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Solution

The fourth proportional to 475,131.17, 655,681.13 and 260,278.87 is: 359,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,131.17 : 655,681.13 = 260,278.87 : x
  2. Step 2: Convert to fraction form
    475,131.17/655,681.13 = 260,278.87/x
  3. Step 3: Cross multiply
    475,131.17x = 655,681.13 × 260,278.87
  4. Step 4: Simplify right side
    475,131.17x = 170,659,943,596.72
  5. Step 5: Solve for x
    x = 170,659,943,596.72/475,131.17
  6. Step 6: Final answer
    x = 359,184.90

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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.