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Finding the Fourth Proportional to 475,076.47, 655,597.42 and 257,283.39

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Solution

The fourth proportional to 475,076.47, 655,597.42 and 257,283.39 is: 355,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,076.47 : 655,597.42 = 257,283.39 : x
  2. Step 2: Convert to fraction form
    475,076.47/655,597.42 = 257,283.39/x
  3. Step 3: Cross multiply
    475,076.47x = 655,597.42 × 257,283.39
  4. Step 4: Simplify right side
    475,076.47x = 168,674,326,692.85
  5. Step 5: Solve for x
    x = 168,674,326,692.85/475,076.47
  6. Step 6: Final answer
    x = 355,046.69

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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.