Home / 442,127.20-663,190.80-146,639.20

Finding the Fourth Proportional to 442,127.20, 663,190.80 and 146,639.20

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Solution

The fourth proportional to 442,127.20, 663,190.80 and 146,639.20 is: 219,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,127.20 : 663,190.80 = 146,639.20 : x
  2. Step 2: Convert to fraction form
    442,127.20/663,190.80 = 146,639.20/x
  3. Step 3: Cross multiply
    442,127.20x = 663,190.80 × 146,639.20
  4. Step 4: Simplify right side
    442,127.20x = 97,249,768,359.36
  5. Step 5: Solve for x
    x = 97,249,768,359.36/442,127.20
  6. Step 6: Final answer
    x = 219,958.80

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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.