Home / 320,775.10-442,656.02-177,521.74

Finding the Fourth Proportional to 320,775.10, 442,656.02 and 177,521.74

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Solution

The fourth proportional to 320,775.10, 442,656.02 and 177,521.74 is: 244,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,775.10 : 442,656.02 = 177,521.74 : x
  2. Step 2: Convert to fraction form
    320,775.10/442,656.02 = 177,521.74/x
  3. Step 3: Cross multiply
    320,775.10x = 442,656.02 × 177,521.74
  4. Step 4: Simplify right side
    320,775.10x = 78,581,066,891.87
  5. Step 5: Solve for x
    x = 78,581,066,891.87/320,775.10
  6. Step 6: Final answer
    x = 244,972.46

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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.