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Finding the Fourth Proportional to 229,475.52, 316,697.72 and 138,853.94

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Solution

The fourth proportional to 229,475.52, 316,697.72 and 138,853.94 is: 191,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,475.52 : 316,697.72 = 138,853.94 : x
  2. Step 2: Convert to fraction form
    229,475.52/316,697.72 = 138,853.94/x
  3. Step 3: Cross multiply
    229,475.52x = 316,697.72 × 138,853.94
  4. Step 4: Simplify right side
    229,475.52x = 43,974,723,933.26
  5. Step 5: Solve for x
    x = 43,974,723,933.26/229,475.52
  6. Step 6: Final answer
    x = 191,631.44

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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.