Home / 317,990.20-438,805.26-174,747.16

Finding the Fourth Proportional to 317,990.20, 438,805.26 and 174,747.16

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Solution

The fourth proportional to 317,990.20, 438,805.26 and 174,747.16 is: 241,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,990.20 : 438,805.26 = 174,747.16 : x
  2. Step 2: Convert to fraction form
    317,990.20/438,805.26 = 174,747.16/x
  3. Step 3: Cross multiply
    317,990.20x = 438,805.26 × 174,747.16
  4. Step 4: Simplify right side
    317,990.20x = 76,679,972,978.06
  5. Step 5: Solve for x
    x = 76,679,972,978.06/317,990.20
  6. Step 6: Final answer
    x = 241,139.42

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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.