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Finding the Fourth Proportional to 266,180.26, 399,270.40 and 155,294.50

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Solution

The fourth proportional to 266,180.26, 399,270.40 and 155,294.50 is: 232,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,180.26 : 399,270.40 = 155,294.50 : x
  2. Step 2: Convert to fraction form
    266,180.26/399,270.40 = 155,294.50/x
  3. Step 3: Cross multiply
    266,180.26x = 399,270.40 × 155,294.50
  4. Step 4: Simplify right side
    266,180.26x = 62,004,497,132.80
  5. Step 5: Solve for x
    x = 62,004,497,132.80/266,180.26
  6. Step 6: Final answer
    x = 232,941.76

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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.