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Finding the Fourth Proportional to 475,002.21, 655,478.76 and 260,100.78

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Solution

The fourth proportional to 475,002.21, 655,478.76 and 260,100.78 is: 358,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,002.21 : 655,478.76 = 260,100.78 : x
  2. Step 2: Convert to fraction form
    475,002.21/655,478.76 = 260,100.78/x
  3. Step 3: Cross multiply
    475,002.21x = 655,478.76 × 260,100.78
  4. Step 4: Simplify right side
    475,002.21x = 170,490,536,749.43
  5. Step 5: Solve for x
    x = 170,490,536,749.43/475,002.21
  6. Step 6: Final answer
    x = 358,925.78

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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.