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Finding the Fourth Proportional to 475,078.23, 655,608.13 and 260,221.88

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Solution

The fourth proportional to 475,078.23, 655,608.13 and 260,221.88 is: 359,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,078.23 : 655,608.13 = 260,221.88 : x
  2. Step 2: Convert to fraction form
    475,078.23/655,608.13 = 260,221.88/x
  3. Step 3: Cross multiply
    475,078.23x = 655,608.13 × 260,221.88
  4. Step 4: Simplify right side
    475,078.23x = 170,603,581,120.35
  5. Step 5: Solve for x
    x = 170,603,581,120.35/475,078.23
  6. Step 6: Final answer
    x = 359,106.29

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1.5x scale

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.