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Finding the Fourth Proportional to 223,304, 308,159.68 and 122,702.72

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Solution

The fourth proportional to 223,304, 308,159.68 and 122,702.72 is: 169,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,304 : 308,159.68 = 122,702.72 : x
  2. Step 2: Convert to fraction form
    223,304/308,159.68 = 122,702.72/x
  3. Step 3: Cross multiply
    223,304x = 308,159.68 × 122,702.72
  4. Step 4: Simplify right side
    223,304x = 37,812,030,930.33
  5. Step 5: Solve for x
    x = 37,812,030,930.33/223,304
  6. Step 6: Final answer
    x = 169,329.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.