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Finding the Fourth Proportional to 475,015.78, 655,497.39 and 260,114.28

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Solution

The fourth proportional to 475,015.78, 655,497.39 and 260,114.28 is: 358,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,015.78 : 655,497.39 = 260,114.28 : x
  2. Step 2: Convert to fraction form
    475,015.78/655,497.39 = 260,114.28/x
  3. Step 3: Cross multiply
    475,015.78x = 655,497.39 × 260,114.28
  4. Step 4: Simplify right side
    475,015.78x = 170,504,231,641.73
  5. Step 5: Solve for x
    x = 170,504,231,641.73/475,015.78
  6. Step 6: Final answer
    x = 358,944.35

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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.