Home / 289,031.04-398,869.92-161,714.88

Finding the Fourth Proportional to 289,031.04, 398,869.92 and 161,714.88

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Solution

The fourth proportional to 289,031.04, 398,869.92 and 161,714.88 is: 223,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,031.04 : 398,869.92 = 161,714.88 : x
  2. Step 2: Convert to fraction form
    289,031.04/398,869.92 = 161,714.88/x
  3. Step 3: Cross multiply
    289,031.04x = 398,869.92 × 161,714.88
  4. Step 4: Simplify right side
    289,031.04x = 64,503,201,248.41
  5. Step 5: Solve for x
    x = 64,503,201,248.41/289,031.04
  6. Step 6: Final answer
    x = 223,170.50

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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.