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Finding the Fourth Proportional to 408,184.15, 612,282.53 and 155,478.73

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Solution

The fourth proportional to 408,184.15, 612,282.53 and 155,478.73 is: 233,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,184.15 : 612,282.53 = 155,478.73 : x
  2. Step 2: Convert to fraction form
    408,184.15/612,282.53 = 155,478.73/x
  3. Step 3: Cross multiply
    408,184.15x = 612,282.53 × 155,478.73
  4. Step 4: Simplify right side
    408,184.15x = 95,196,910,165.59
  5. Step 5: Solve for x
    x = 95,196,910,165.59/408,184.15
  6. Step 6: Final answer
    x = 233,220.50

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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.