Home / 465,146.19-696,785.10-212,078.57

Finding the Fourth Proportional to 465,146.19, 696,785.10 and 212,078.57

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Solution

The fourth proportional to 465,146.19, 696,785.10 and 212,078.57 is: 317,691.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,146.19 : 696,785.10 = 212,078.57 : x
  2. Step 2: Convert to fraction form
    465,146.19/696,785.10 = 212,078.57/x
  3. Step 3: Cross multiply
    465,146.19x = 696,785.10 × 212,078.57
  4. Step 4: Simplify right side
    465,146.19x = 147,773,184,121.38
  5. Step 5: Solve for x
    x = 147,773,184,121.38/465,146.19
  6. Step 6: Final answer
    x = 317,691.92

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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.