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Finding the Fourth Proportional to 266,130.60, 399,195.90 and 239,886.60

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Solution

The fourth proportional to 266,130.60, 399,195.90 and 239,886.60 is: 359,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,130.60 : 399,195.90 = 239,886.60 : x
  2. Step 2: Convert to fraction form
    266,130.60/399,195.90 = 239,886.60/x
  3. Step 3: Cross multiply
    266,130.60x = 399,195.90 × 239,886.60
  4. Step 4: Simplify right side
    266,130.60x = 95,761,747,184.94
  5. Step 5: Solve for x
    x = 95,761,747,184.94/266,130.60
  6. Step 6: Final answer
    x = 359,829.90

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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.