Home / 389,272.32-537,195.05-217,180.04

Finding the Fourth Proportional to 389,272.32, 537,195.05 and 217,180.04

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Solution

The fourth proportional to 389,272.32, 537,195.05 and 217,180.04 is: 299,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,272.32 : 537,195.05 = 217,180.04 : x
  2. Step 2: Convert to fraction form
    389,272.32/537,195.05 = 217,180.04/x
  3. Step 3: Cross multiply
    389,272.32x = 537,195.05 × 217,180.04
  4. Step 4: Simplify right side
    389,272.32x = 116,668,042,446.80
  5. Step 5: Solve for x
    x = 116,668,042,446.80/389,272.32
  6. Step 6: Final answer
    x = 299,708.04

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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.