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Finding the Fourth Proportional to 511,742.40, 767,613.60 and 132,662.40

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Solution

The fourth proportional to 511,742.40, 767,613.60 and 132,662.40 is: 198,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,742.40 : 767,613.60 = 132,662.40 : x
  2. Step 2: Convert to fraction form
    511,742.40/767,613.60 = 132,662.40/x
  3. Step 3: Cross multiply
    511,742.40x = 767,613.60 × 132,662.40
  4. Step 4: Simplify right side
    511,742.40x = 101,833,462,448.64
  5. Step 5: Solve for x
    x = 101,833,462,448.64/511,742.40
  6. Step 6: Final answer
    x = 198,993.60

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Similar ratio
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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.