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Finding the Fourth Proportional to 442,448.80, 663,673.20 and 126,877.60

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Solution

The fourth proportional to 442,448.80, 663,673.20 and 126,877.60 is: 190,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,448.80 : 663,673.20 = 126,877.60 : x
  2. Step 2: Convert to fraction form
    442,448.80/663,673.20 = 126,877.60/x
  3. Step 3: Cross multiply
    442,448.80x = 663,673.20 × 126,877.60
  4. Step 4: Simplify right side
    442,448.80x = 84,205,262,800.32
  5. Step 5: Solve for x
    x = 84,205,262,800.32/442,448.80
  6. Step 6: Final answer
    x = 190,316.40

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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.