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Finding the Fourth Proportional to 260,560.80, 390,801.24 and 100,614.24

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Solution

The fourth proportional to 260,560.80, 390,801.24 and 100,614.24 is: 150,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,560.80 : 390,801.24 = 100,614.24 : x
  2. Step 2: Convert to fraction form
    260,560.80/390,801.24 = 100,614.24/x
  3. Step 3: Cross multiply
    260,560.80x = 390,801.24 × 100,614.24
  4. Step 4: Simplify right side
    260,560.80x = 39,320,169,753.66
  5. Step 5: Solve for x
    x = 39,320,169,753.66/260,560.80
  6. Step 6: Final answer
    x = 150,905.93

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1.5x scale

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.