Home / 320,820.04-442,726.08-177,576.96

Finding the Fourth Proportional to 320,820.04, 442,726.08 and 177,576.96

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Solution

The fourth proportional to 320,820.04, 442,726.08 and 177,576.96 is: 245,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,820.04 : 442,726.08 = 177,576.96 : x
  2. Step 2: Convert to fraction form
    320,820.04/442,726.08 = 177,576.96/x
  3. Step 3: Cross multiply
    320,820.04x = 442,726.08 × 177,576.96
  4. Step 4: Simplify right side
    320,820.04x = 78,617,951,399.12
  5. Step 5: Solve for x
    x = 78,617,951,399.12/320,820.04
  6. Step 6: Final answer
    x = 245,053.12

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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.