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Finding the Fourth Proportional to 408,156.23, 612,240.53 and 155,450.71

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Solution

The fourth proportional to 408,156.23, 612,240.53 and 155,450.71 is: 233,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,156.23 : 612,240.53 = 155,450.71 : x
  2. Step 2: Convert to fraction form
    408,156.23/612,240.53 = 155,450.71/x
  3. Step 3: Cross multiply
    408,156.23x = 612,240.53 × 155,450.71
  4. Step 4: Simplify right side
    408,156.23x = 95,173,225,067.32
  5. Step 5: Solve for x
    x = 95,173,225,067.32/408,156.23
  6. Step 6: Final answer
    x = 233,178.42

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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.