Home / 285,192.90-427,911.66-135,538.92

Finding the Fourth Proportional to 285,192.90, 427,911.66 and 135,538.92

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Solution

The fourth proportional to 285,192.90, 427,911.66 and 135,538.92 is: 203,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,192.90 : 427,911.66 = 135,538.92 : x
  2. Step 2: Convert to fraction form
    285,192.90/427,911.66 = 135,538.92/x
  3. Step 3: Cross multiply
    285,192.90x = 427,911.66 × 135,538.92
  4. Step 4: Simplify right side
    285,192.90x = 57,998,684,251.81
  5. Step 5: Solve for x
    x = 57,998,684,251.81/285,192.90
  6. Step 6: Final answer
    x = 203,366.51

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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.