Home / 315,542.24-435,466-172,315.60

Finding the Fourth Proportional to 315,542.24, 435,466 and 172,315.60

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Solution

The fourth proportional to 315,542.24, 435,466 and 172,315.60 is: 237,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,542.24 : 435,466 = 172,315.60 : x
  2. Step 2: Convert to fraction form
    315,542.24/435,466 = 172,315.60/x
  3. Step 3: Cross multiply
    315,542.24x = 435,466 × 172,315.60
  4. Step 4: Simplify right side
    315,542.24x = 75,037,585,069.60
  5. Step 5: Solve for x
    x = 75,037,585,069.60/315,542.24
  6. Step 6: Final answer
    x = 237,805.20

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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.