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Finding the Fourth Proportional to 163,387.20, 245,080.80 and 148,612.80

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Solution

The fourth proportional to 163,387.20, 245,080.80 and 148,612.80 is: 222,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,387.20 : 245,080.80 = 148,612.80 : x
  2. Step 2: Convert to fraction form
    163,387.20/245,080.80 = 148,612.80/x
  3. Step 3: Cross multiply
    163,387.20x = 245,080.80 × 148,612.80
  4. Step 4: Simplify right side
    163,387.20x = 36,422,143,914.24
  5. Step 5: Solve for x
    x = 36,422,143,914.24/163,387.20
  6. Step 6: Final answer
    x = 222,919.20

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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.