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Finding the Fourth Proportional to 615,502.80, 923,340.60 and 194,734.80

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Solution

The fourth proportional to 615,502.80, 923,340.60 and 194,734.80 is: 292,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,502.80 : 923,340.60 = 194,734.80 : x
  2. Step 2: Convert to fraction form
    615,502.80/923,340.60 = 194,734.80/x
  3. Step 3: Cross multiply
    615,502.80x = 923,340.60 × 194,734.80
  4. Step 4: Simplify right side
    615,502.80x = 179,806,547,072.88
  5. Step 5: Solve for x
    x = 179,806,547,072.88/615,502.80
  6. Step 6: Final answer
    x = 292,129.54

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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.