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Finding the Fourth Proportional to 163,281.78, 244,998 and 74,562.48

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Solution

The fourth proportional to 163,281.78, 244,998 and 74,562.48 is: 111,878.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,281.78 : 244,998 = 74,562.48 : x
  2. Step 2: Convert to fraction form
    163,281.78/244,998 = 74,562.48/x
  3. Step 3: Cross multiply
    163,281.78x = 244,998 × 74,562.48
  4. Step 4: Simplify right side
    163,281.78x = 18,267,658,475.04
  5. Step 5: Solve for x
    x = 18,267,658,475.04/163,281.78
  6. Step 6: Final answer
    x = 111,878.12

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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.