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Finding the Fourth Proportional to 454,812.30, 682,218.45 and 155,266.20

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Solution

The fourth proportional to 454,812.30, 682,218.45 and 155,266.20 is: 232,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,812.30 : 682,218.45 = 155,266.20 : x
  2. Step 2: Convert to fraction form
    454,812.30/682,218.45 = 155,266.20/x
  3. Step 3: Cross multiply
    454,812.30x = 682,218.45 × 155,266.20
  4. Step 4: Simplify right side
    454,812.30x = 105,925,466,301.39
  5. Step 5: Solve for x
    x = 105,925,466,301.39/454,812.30
  6. Step 6: Final answer
    x = 232,899.30

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Similar ratio
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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.