Home / 386,867.34-533,851.56-225,696.38

Finding the Fourth Proportional to 386,867.34, 533,851.56 and 225,696.38

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Solution

The fourth proportional to 386,867.34, 533,851.56 and 225,696.38 is: 311,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,867.34 : 533,851.56 = 225,696.38 : x
  2. Step 2: Convert to fraction form
    386,867.34/533,851.56 = 225,696.38/x
  3. Step 3: Cross multiply
    386,867.34x = 533,851.56 × 225,696.38
  4. Step 4: Simplify right side
    386,867.34x = 120,488,361,880.10
  5. Step 5: Solve for x
    x = 120,488,361,880.10/386,867.34
  6. Step 6: Final answer
    x = 311,446.20

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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.