Home / 340,743.36-511,115.04-130,445.76

Finding the Fourth Proportional to 340,743.36, 511,115.04 and 130,445.76

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Solution

The fourth proportional to 340,743.36, 511,115.04 and 130,445.76 is: 195,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,743.36 : 511,115.04 = 130,445.76 : x
  2. Step 2: Convert to fraction form
    340,743.36/511,115.04 = 130,445.76/x
  3. Step 3: Cross multiply
    340,743.36x = 511,115.04 × 130,445.76
  4. Step 4: Simplify right side
    340,743.36x = 66,672,789,840.23
  5. Step 5: Solve for x
    x = 66,672,789,840.23/340,743.36
  6. Step 6: Final answer
    x = 195,668.64

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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.