Home / 217,432.14-299,778.56-140,815.86

Finding the Fourth Proportional to 217,432.14, 299,778.56 and 140,815.86

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Solution

The fourth proportional to 217,432.14, 299,778.56 and 140,815.86 is: 194,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,432.14 : 299,778.56 = 140,815.86 : x
  2. Step 2: Convert to fraction form
    217,432.14/299,778.56 = 140,815.86/x
  3. Step 3: Cross multiply
    217,432.14x = 299,778.56 × 140,815.86
  4. Step 4: Simplify right side
    217,432.14x = 42,213,575,735.96
  5. Step 5: Solve for x
    x = 42,213,575,735.96/217,432.14
  6. Step 6: Final answer
    x = 194,145.98

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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.