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Finding the Fourth Proportional to 475,309.42, 655,930.11 and 260,458.54

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Solution

The fourth proportional to 475,309.42, 655,930.11 and 260,458.54 is: 359,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,309.42 : 655,930.11 = 260,458.54 : x
  2. Step 2: Convert to fraction form
    475,309.42/655,930.11 = 260,458.54/x
  3. Step 3: Cross multiply
    475,309.42x = 655,930.11 × 260,458.54
  4. Step 4: Simplify right side
    475,309.42x = 170,842,598,792.64
  5. Step 5: Solve for x
    x = 170,842,598,792.64/475,309.42
  6. Step 6: Final answer
    x = 359,434.49

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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.