Home / 320,345.31-442,085.75-177,114.57

Finding the Fourth Proportional to 320,345.31, 442,085.75 and 177,114.57

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Solution

The fourth proportional to 320,345.31, 442,085.75 and 177,114.57 is: 244,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,345.31 : 442,085.75 = 177,114.57 : x
  2. Step 2: Convert to fraction form
    320,345.31/442,085.75 = 177,114.57/x
  3. Step 3: Cross multiply
    320,345.31x = 442,085.75 × 177,114.57
  4. Step 4: Simplify right side
    320,345.31x = 78,299,825,635.16
  5. Step 5: Solve for x
    x = 78,299,825,635.16/320,345.31
  6. Step 6: Final answer
    x = 244,423.20

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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.