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Finding the Fourth Proportional to 408,149.81, 612,230.94 and 155,444.29

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Solution

The fourth proportional to 408,149.81, 612,230.94 and 155,444.29 is: 233,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,149.81 : 612,230.94 = 155,444.29 : x
  2. Step 2: Convert to fraction form
    408,149.81/612,230.94 = 155,444.29/x
  3. Step 3: Cross multiply
    408,149.81x = 612,230.94 × 155,444.29
  4. Step 4: Simplify right side
    408,149.81x = 95,167,803,784.33
  5. Step 5: Solve for x
    x = 95,167,803,784.33/408,149.81
  6. Step 6: Final answer
    x = 233,168.81

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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.