Home / 654,742.72-982,135.20-181,432.64

Finding the Fourth Proportional to 654,742.72, 982,135.20 and 181,432.64

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Solution

The fourth proportional to 654,742.72, 982,135.20 and 181,432.64 is: 272,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,742.72 : 982,135.20 = 181,432.64 : x
  2. Step 2: Convert to fraction form
    654,742.72/982,135.20 = 181,432.64/x
  3. Step 3: Cross multiply
    654,742.72x = 982,135.20 × 181,432.64
  4. Step 4: Simplify right side
    654,742.72x = 178,191,382,172.93
  5. Step 5: Solve for x
    x = 178,191,382,172.93/654,742.72
  6. Step 6: Final answer
    x = 272,154.81

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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.