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Finding the Fourth Proportional to 342,001.30, 479,982.80 and 342,001.30

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Solution

The fourth proportional to 342,001.30, 479,982.80 and 342,001.30 is: 479,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,001.30 : 479,982.80 = 342,001.30 : x
  2. Step 2: Convert to fraction form
    342,001.30/479,982.80 = 342,001.30/x
  3. Step 3: Cross multiply
    342,001.30x = 479,982.80 × 342,001.30
  4. Step 4: Simplify right side
    342,001.30x = 164,154,741,577.64
  5. Step 5: Solve for x
    x = 164,154,741,577.64/342,001.30
  6. Step 6: Final answer
    x = 479,982.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.