Home / 219,742.40-329,613.60-53,530.40

Finding the Fourth Proportional to 219,742.40, 329,613.60 and 53,530.40

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Solution

The fourth proportional to 219,742.40, 329,613.60 and 53,530.40 is: 80,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,742.40 : 329,613.60 = 53,530.40 : x
  2. Step 2: Convert to fraction form
    219,742.40/329,613.60 = 53,530.40/x
  3. Step 3: Cross multiply
    219,742.40x = 329,613.60 × 53,530.40
  4. Step 4: Simplify right side
    219,742.40x = 17,644,347,853.44
  5. Step 5: Solve for x
    x = 17,644,347,853.44/219,742.40
  6. Step 6: Final answer
    x = 80,295.60

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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.