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Finding the Fourth Proportional to 475,129.59, 655,679.01 and 260,277.40

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Solution

The fourth proportional to 475,129.59, 655,679.01 and 260,277.40 is: 359,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,129.59 : 655,679.01 = 260,277.40 : x
  2. Step 2: Convert to fraction form
    475,129.59/655,679.01 = 260,277.40/x
  3. Step 3: Cross multiply
    475,129.59x = 655,679.01 × 260,277.40
  4. Step 4: Simplify right side
    475,129.59x = 170,658,427,957.37
  5. Step 5: Solve for x
    x = 170,658,427,957.37/475,129.59
  6. Step 6: Final answer
    x = 359,182.91

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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.