Home / 272,460.28-408,690.06-85,486.36

Finding the Fourth Proportional to 272,460.28, 408,690.06 and 85,486.36

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Solution

The fourth proportional to 272,460.28, 408,690.06 and 85,486.36 is: 128,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,460.28 : 408,690.06 = 85,486.36 : x
  2. Step 2: Convert to fraction form
    272,460.28/408,690.06 = 85,486.36/x
  3. Step 3: Cross multiply
    272,460.28x = 408,690.06 × 85,486.36
  4. Step 4: Simplify right side
    272,460.28x = 34,937,425,597.58
  5. Step 5: Solve for x
    x = 34,937,425,597.58/272,460.28
  6. Step 6: Final answer
    x = 128,229.43

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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.