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Finding the Fourth Proportional to 212,390.34, 318,585.11 and 62,735.71

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Solution

The fourth proportional to 212,390.34, 318,585.11 and 62,735.71 is: 94,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,390.34 : 318,585.11 = 62,735.71 : x
  2. Step 2: Convert to fraction form
    212,390.34/318,585.11 = 62,735.71/x
  3. Step 3: Cross multiply
    212,390.34x = 318,585.11 × 62,735.71
  4. Step 4: Simplify right side
    212,390.34x = 19,986,663,071.28
  5. Step 5: Solve for x
    x = 19,986,663,071.28/212,390.34
  6. Step 6: Final answer
    x = 94,103.45

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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.