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Finding the Fourth Proportional to 266,962.56, 368,490.56 and 153,860.80

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Solution

The fourth proportional to 266,962.56, 368,490.56 and 153,860.80 is: 212,375.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,962.56 : 368,490.56 = 153,860.80 : x
  2. Step 2: Convert to fraction form
    266,962.56/368,490.56 = 153,860.80/x
  3. Step 3: Cross multiply
    266,962.56x = 368,490.56 × 153,860.80
  4. Step 4: Simplify right side
    266,962.56x = 56,696,252,354.05
  5. Step 5: Solve for x
    x = 56,696,252,354.05/266,962.56
  6. Step 6: Final answer
    x = 212,375.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.