Home / 320,973.18-442,937.55-177,730.15

Finding the Fourth Proportional to 320,973.18, 442,937.55 and 177,730.15

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Solution

The fourth proportional to 320,973.18, 442,937.55 and 177,730.15 is: 245,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,973.18 : 442,937.55 = 177,730.15 : x
  2. Step 2: Convert to fraction form
    320,973.18/442,937.55 = 177,730.15/x
  3. Step 3: Cross multiply
    320,973.18x = 442,937.55 × 177,730.15
  4. Step 4: Simplify right side
    320,973.18x = 78,723,357,591.78
  5. Step 5: Solve for x
    x = 78,723,357,591.78/320,973.18
  6. Step 6: Final answer
    x = 245,264.60

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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.