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Finding the Fourth Proportional to 408,154.41, 612,276.27 and 138,477.26

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Solution

The fourth proportional to 408,154.41, 612,276.27 and 138,477.26 is: 207,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,154.41 : 612,276.27 = 138,477.26 : x
  2. Step 2: Convert to fraction form
    408,154.41/612,276.27 = 138,477.26/x
  3. Step 3: Cross multiply
    408,154.41x = 612,276.27 × 138,477.26
  4. Step 4: Simplify right side
    408,154.41x = 84,786,340,232.62
  5. Step 5: Solve for x
    x = 84,786,340,232.62/408,154.41
  6. Step 6: Final answer
    x = 207,731.04

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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.