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Finding the Fourth Proportional to 453,385.40, 680,103.70 and 137,852.60

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Solution

The fourth proportional to 453,385.40, 680,103.70 and 137,852.60 is: 206,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,385.40 : 680,103.70 = 137,852.60 : x
  2. Step 2: Convert to fraction form
    453,385.40/680,103.70 = 137,852.60/x
  3. Step 3: Cross multiply
    453,385.40x = 680,103.70 × 137,852.60
  4. Step 4: Simplify right side
    453,385.40x = 93,754,063,314.62
  5. Step 5: Solve for x
    x = 93,754,063,314.62/453,385.40
  6. Step 6: Final answer
    x = 206,786.68

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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.