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Finding the Fourth Proportional to 266,666.13, 399,999.56 and 108,894.57

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Solution

The fourth proportional to 266,666.13, 399,999.56 and 108,894.57 is: 163,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,666.13 : 399,999.56 = 108,894.57 : x
  2. Step 2: Convert to fraction form
    266,666.13/399,999.56 = 108,894.57/x
  3. Step 3: Cross multiply
    266,666.13x = 399,999.56 × 108,894.57
  4. Step 4: Simplify right side
    266,666.13x = 43,557,779,541.92
  5. Step 5: Solve for x
    x = 43,557,779,541.92/266,666.13
  6. Step 6: Final answer
    x = 163,342.00

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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.