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Finding the Fourth Proportional to 185,449.64, 255,810.78 and 118,381.64

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Solution

The fourth proportional to 185,449.64, 255,810.78 and 118,381.64 is: 163,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,449.64 : 255,810.78 = 118,381.64 : x
  2. Step 2: Convert to fraction form
    185,449.64/255,810.78 = 118,381.64/x
  3. Step 3: Cross multiply
    185,449.64x = 255,810.78 × 118,381.64
  4. Step 4: Simplify right side
    185,449.64x = 30,283,298,387.03
  5. Step 5: Solve for x
    x = 30,283,298,387.03/185,449.64
  6. Step 6: Final answer
    x = 163,296.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.