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Finding the Fourth Proportional to 266,040.03, 399,200.18 and 153,799.08

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Solution

The fourth proportional to 266,040.03, 399,200.18 and 153,799.08 is: 230,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,040.03 : 399,200.18 = 153,799.08 : x
  2. Step 2: Convert to fraction form
    266,040.03/399,200.18 = 153,799.08/x
  3. Step 3: Cross multiply
    266,040.03x = 399,200.18 × 153,799.08
  4. Step 4: Simplify right side
    266,040.03x = 61,396,619,650.84
  5. Step 5: Solve for x
    x = 61,396,619,650.84/266,040.03
  6. Step 6: Final answer
    x = 230,779.63

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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.