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Finding the Fourth Proportional to 266,268.98, 399,407 and 88,776.04

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Solution

The fourth proportional to 266,268.98, 399,407 and 88,776.04 is: 133,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,268.98 : 399,407 = 88,776.04 : x
  2. Step 2: Convert to fraction form
    266,268.98/399,407 = 88,776.04/x
  3. Step 3: Cross multiply
    266,268.98x = 399,407 × 88,776.04
  4. Step 4: Simplify right side
    266,268.98x = 35,457,771,808.28
  5. Step 5: Solve for x
    x = 35,457,771,808.28/266,268.98
  6. Step 6: Final answer
    x = 133,165.24

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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.