Home / 320,973.23-442,937.65-177,730.20

Finding the Fourth Proportional to 320,973.23, 442,937.65 and 177,730.20

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Solution

The fourth proportional to 320,973.23, 442,937.65 and 177,730.20 is: 245,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,973.23 : 442,937.65 = 177,730.20 : x
  2. Step 2: Convert to fraction form
    320,973.23/442,937.65 = 177,730.20/x
  3. Step 3: Cross multiply
    320,973.23x = 442,937.65 × 177,730.20
  4. Step 4: Simplify right side
    320,973.23x = 78,723,397,010.95
  5. Step 5: Solve for x
    x = 78,723,397,010.95/320,973.23
  6. Step 6: Final answer
    x = 245,264.68

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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.