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Finding the Fourth Proportional to 321,254.80, 481,882.20 and 155,366.80

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Solution

The fourth proportional to 321,254.80, 481,882.20 and 155,366.80 is: 233,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,254.80 : 481,882.20 = 155,366.80 : x
  2. Step 2: Convert to fraction form
    321,254.80/481,882.20 = 155,366.80/x
  3. Step 3: Cross multiply
    321,254.80x = 481,882.20 × 155,366.80
  4. Step 4: Simplify right side
    321,254.80x = 74,868,495,390.96
  5. Step 5: Solve for x
    x = 74,868,495,390.96/321,254.80
  6. Step 6: Final answer
    x = 233,050.20

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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.