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Finding the Fourth Proportional to 223,848.79, 308,909.47 and 121,874.04

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Solution

The fourth proportional to 223,848.79, 308,909.47 and 121,874.04 is: 168,185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,848.79 : 308,909.47 = 121,874.04 : x
  2. Step 2: Convert to fraction form
    223,848.79/308,909.47 = 121,874.04/x
  3. Step 3: Cross multiply
    223,848.79x = 308,909.47 × 121,874.04
  4. Step 4: Simplify right side
    223,848.79x = 37,648,045,103.16
  5. Step 5: Solve for x
    x = 37,648,045,103.16/223,848.79
  6. Step 6: Final answer
    x = 168,185.16

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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.