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Finding the Fourth Proportional to 242,779.03, 335,052.80 and 140,839.32

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Solution

The fourth proportional to 242,779.03, 335,052.80 and 140,839.32 is: 194,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,779.03 : 335,052.80 = 140,839.32 : x
  2. Step 2: Convert to fraction form
    242,779.03/335,052.80 = 140,839.32/x
  3. Step 3: Cross multiply
    242,779.03x = 335,052.80 × 140,839.32
  4. Step 4: Simplify right side
    242,779.03x = 47,188,608,516.10
  5. Step 5: Solve for x
    x = 47,188,608,516.10/242,779.03
  6. Step 6: Final answer
    x = 194,368.55

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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.