Home / 272,373.28-409,227.18-257,266.60

Finding the Fourth Proportional to 272,373.28, 409,227.18 and 257,266.60

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Solution

The fourth proportional to 272,373.28, 409,227.18 and 257,266.60 is: 386,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,373.28 : 409,227.18 = 257,266.60 : x
  2. Step 2: Convert to fraction form
    272,373.28/409,227.18 = 257,266.60/x
  3. Step 3: Cross multiply
    272,373.28x = 409,227.18 × 257,266.60
  4. Step 4: Simplify right side
    272,373.28x = 105,280,485,226.19
  5. Step 5: Solve for x
    x = 105,280,485,226.19/272,373.28
  6. Step 6: Final answer
    x = 386,530.15

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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.