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Finding the Fourth Proportional to 229,527.30, 316,695.78 and 138,881.01

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Solution

The fourth proportional to 229,527.30, 316,695.78 and 138,881.01 is: 191,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,527.30 : 316,695.78 = 138,881.01 : x
  2. Step 2: Convert to fraction form
    229,527.30/316,695.78 = 138,881.01/x
  3. Step 3: Cross multiply
    229,527.30x = 316,695.78 × 138,881.01
  4. Step 4: Simplify right side
    229,527.30x = 43,983,029,789.14
  5. Step 5: Solve for x
    x = 43,983,029,789.14/229,527.30
  6. Step 6: Final answer
    x = 191,624.39

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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.