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Finding the Fourth Proportional to 475,031.60, 655,519.05 and 260,130.20

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Solution

The fourth proportional to 475,031.60, 655,519.05 and 260,130.20 is: 358,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,031.60 : 655,519.05 = 260,130.20 : x
  2. Step 2: Convert to fraction form
    475,031.60/655,519.05 = 260,130.20/x
  3. Step 3: Cross multiply
    475,031.60x = 655,519.05 × 260,130.20
  4. Step 4: Simplify right side
    475,031.60x = 170,520,301,580.31
  5. Step 5: Solve for x
    x = 170,520,301,580.31/475,031.60
  6. Step 6: Final answer
    x = 358,966.23

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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.