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Finding the Fourth Proportional to 615,022.60, 921,877.80 and 235,796.80

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Solution

The fourth proportional to 615,022.60, 921,877.80 and 235,796.80 is: 353,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,022.60 : 921,877.80 = 235,796.80 : x
  2. Step 2: Convert to fraction form
    615,022.60/921,877.80 = 235,796.80/x
  3. Step 3: Cross multiply
    615,022.60x = 921,877.80 × 235,796.80
  4. Step 4: Simplify right side
    615,022.60x = 217,375,835,231.04
  5. Step 5: Solve for x
    x = 217,375,835,231.04/615,022.60
  6. Step 6: Final answer
    x = 353,443.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.