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Finding the Fourth Proportional to 320,603.28, 442,425.72 and 177,359.28

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Solution

The fourth proportional to 320,603.28, 442,425.72 and 177,359.28 is: 244,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,603.28 : 442,425.72 = 177,359.28 : x
  2. Step 2: Convert to fraction form
    320,603.28/442,425.72 = 177,359.28/x
  3. Step 3: Cross multiply
    320,603.28x = 442,425.72 × 177,359.28
  4. Step 4: Simplify right side
    320,603.28x = 78,468,307,152.68
  5. Step 5: Solve for x
    x = 78,468,307,152.68/320,603.28
  6. Step 6: Final answer
    x = 244,752.04

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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.