Home / 272,836.20-409,254.30-139,672.20

Finding the Fourth Proportional to 272,836.20, 409,254.30 and 139,672.20

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Solution

The fourth proportional to 272,836.20, 409,254.30 and 139,672.20 is: 209,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,836.20 : 409,254.30 = 139,672.20 : x
  2. Step 2: Convert to fraction form
    272,836.20/409,254.30 = 139,672.20/x
  3. Step 3: Cross multiply
    272,836.20x = 409,254.30 × 139,672.20
  4. Step 4: Simplify right side
    272,836.20x = 57,161,448,440.46
  5. Step 5: Solve for x
    x = 57,161,448,440.46/272,836.20
  6. Step 6: Final answer
    x = 209,508.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.