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Finding the Fourth Proportional to 542,908.40, 814,459.80 and 227,397.20

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Solution

The fourth proportional to 542,908.40, 814,459.80 and 227,397.20 is: 341,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,908.40 : 814,459.80 = 227,397.20 : x
  2. Step 2: Convert to fraction form
    542,908.40/814,459.80 = 227,397.20/x
  3. Step 3: Cross multiply
    542,908.40x = 814,459.80 × 227,397.20
  4. Step 4: Simplify right side
    542,908.40x = 185,205,878,032.56
  5. Step 5: Solve for x
    x = 185,205,878,032.56/542,908.40
  6. Step 6: Final answer
    x = 341,136.51

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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.