Home / 315,799.48-435,833.76-172,581.22

Finding the Fourth Proportional to 315,799.48, 435,833.76 and 172,581.22

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Solution

The fourth proportional to 315,799.48, 435,833.76 and 172,581.22 is: 238,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,799.48 : 435,833.76 = 172,581.22 : x
  2. Step 2: Convert to fraction form
    315,799.48/435,833.76 = 172,581.22/x
  3. Step 3: Cross multiply
    315,799.48x = 435,833.76 × 172,581.22
  4. Step 4: Simplify right side
    315,799.48x = 75,216,722,017.99
  5. Step 5: Solve for x
    x = 75,216,722,017.99/315,799.48
  6. Step 6: Final answer
    x = 238,178.74

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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.