Home / 317,874.20-438,559.40-180,034.34

Finding the Fourth Proportional to 317,874.20, 438,559.40 and 180,034.34

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Solution

The fourth proportional to 317,874.20, 438,559.40 and 180,034.34 is: 248,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,874.20 : 438,559.40 = 180,034.34 : x
  2. Step 2: Convert to fraction form
    317,874.20/438,559.40 = 180,034.34/x
  3. Step 3: Cross multiply
    317,874.20x = 438,559.40 × 180,034.34
  4. Step 4: Simplify right side
    317,874.20x = 78,955,752,129.80
  5. Step 5: Solve for x
    x = 78,955,752,129.80/317,874.20
  6. Step 6: Final answer
    x = 248,386.79

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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.