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Finding the Fourth Proportional to 434,641.80, 652,236.30 and 185,320.20

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Solution

The fourth proportional to 434,641.80, 652,236.30 and 185,320.20 is: 278,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,641.80 : 652,236.30 = 185,320.20 : x
  2. Step 2: Convert to fraction form
    434,641.80/652,236.30 = 185,320.20/x
  3. Step 3: Cross multiply
    434,641.80x = 652,236.30 × 185,320.20
  4. Step 4: Simplify right side
    434,641.80x = 120,872,561,563.26
  5. Step 5: Solve for x
    x = 120,872,561,563.26/434,641.80
  6. Step 6: Final answer
    x = 278,096.96

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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.