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Finding the Fourth Proportional to 393,452.80, 543,006.91 and 240,580.59

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Solution

The fourth proportional to 393,452.80, 543,006.91 and 240,580.59 is: 332,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,452.80 : 543,006.91 = 240,580.59 : x
  2. Step 2: Convert to fraction form
    393,452.80/543,006.91 = 240,580.59/x
  3. Step 3: Cross multiply
    393,452.80x = 543,006.91 × 240,580.59
  4. Step 4: Simplify right side
    393,452.80x = 130,636,919,693.06
  5. Step 5: Solve for x
    x = 130,636,919,693.06/393,452.80
  6. Step 6: Final answer
    x = 332,026.92

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1.5x scale

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.