Home / 217,580.64-326,108.52-112,342.20

Finding the Fourth Proportional to 217,580.64, 326,108.52 and 112,342.20

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Solution

The fourth proportional to 217,580.64, 326,108.52 and 112,342.20 is: 168,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,580.64 : 326,108.52 = 112,342.20 : x
  2. Step 2: Convert to fraction form
    217,580.64/326,108.52 = 112,342.20/x
  3. Step 3: Cross multiply
    217,580.64x = 326,108.52 × 112,342.20
  4. Step 4: Simplify right side
    217,580.64x = 36,635,748,575.54
  5. Step 5: Solve for x
    x = 36,635,748,575.54/217,580.64
  6. Step 6: Final answer
    x = 168,377.80

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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.