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Finding the Fourth Proportional to 344,512.80, 515,602.80 and 302,522.40

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Solution

The fourth proportional to 344,512.80, 515,602.80 and 302,522.40 is: 452,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,512.80 : 515,602.80 = 302,522.40 : x
  2. Step 2: Convert to fraction form
    344,512.80/515,602.80 = 302,522.40/x
  3. Step 3: Cross multiply
    344,512.80x = 515,602.80 × 302,522.40
  4. Step 4: Simplify right side
    344,512.80x = 155,981,396,502.72
  5. Step 5: Solve for x
    x = 155,981,396,502.72/344,512.80
  6. Step 6: Final answer
    x = 452,759.36

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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.