Home / 317,387.27-438,002.07-174,147.20

Finding the Fourth Proportional to 317,387.27, 438,002.07 and 174,147.20

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Solution

The fourth proportional to 317,387.27, 438,002.07 and 174,147.20 is: 240,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,387.27 : 438,002.07 = 174,147.20 : x
  2. Step 2: Convert to fraction form
    317,387.27/438,002.07 = 174,147.20/x
  3. Step 3: Cross multiply
    317,387.27x = 438,002.07 × 174,147.20
  4. Step 4: Simplify right side
    317,387.27x = 76,276,831,894.69
  5. Step 5: Solve for x
    x = 76,276,831,894.69/317,387.27
  6. Step 6: Final answer
    x = 240,327.32

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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.