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Finding the Fourth Proportional to 475,130.59, 655,680.39 and 260,278.40

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Solution

The fourth proportional to 475,130.59, 655,680.39 and 260,278.40 is: 359,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,130.59 : 655,680.39 = 260,278.40 : x
  2. Step 2: Convert to fraction form
    475,130.59/655,680.39 = 260,278.40/x
  3. Step 3: Cross multiply
    475,130.59x = 655,680.39 × 260,278.40
  4. Step 4: Simplify right side
    475,130.59x = 170,659,442,820.58
  5. Step 5: Solve for x
    x = 170,659,442,820.58/475,130.59
  6. Step 6: Final answer
    x = 359,184.29

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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.