Home / 217,575.48-300,177.18-142,167.72

Finding the Fourth Proportional to 217,575.48, 300,177.18 and 142,167.72

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Solution

The fourth proportional to 217,575.48, 300,177.18 and 142,167.72 is: 196,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,575.48 : 300,177.18 = 142,167.72 : x
  2. Step 2: Convert to fraction form
    217,575.48/300,177.18 = 142,167.72/x
  3. Step 3: Cross multiply
    217,575.48x = 300,177.18 × 142,167.72
  4. Step 4: Simplify right side
    217,575.48x = 42,675,505,276.63
  5. Step 5: Solve for x
    x = 42,675,505,276.63/217,575.48
  6. Step 6: Final answer
    x = 196,141.15

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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.