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Finding the Fourth Proportional to 342,079.80, 512,902.36 and 300,044.30

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Solution

The fourth proportional to 342,079.80, 512,902.36 and 300,044.30 is: 449,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,079.80 : 512,902.36 = 300,044.30 : x
  2. Step 2: Convert to fraction form
    342,079.80/512,902.36 = 300,044.30/x
  3. Step 3: Cross multiply
    342,079.80x = 512,902.36 × 300,044.30
  4. Step 4: Simplify right side
    342,079.80x = 153,893,429,574.55
  5. Step 5: Solve for x
    x = 153,893,429,574.55/342,079.80
  6. Step 6: Final answer
    x = 449,875.82

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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.