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Finding the Fourth Proportional to 218,141.51, 300,934.24 and 127,501.29

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Solution

The fourth proportional to 218,141.51, 300,934.24 and 127,501.29 is: 175,892.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,141.51 : 300,934.24 = 127,501.29 : x
  2. Step 2: Convert to fraction form
    218,141.51/300,934.24 = 127,501.29/x
  3. Step 3: Cross multiply
    218,141.51x = 300,934.24 × 127,501.29
  4. Step 4: Simplify right side
    218,141.51x = 38,369,503,486.42
  5. Step 5: Solve for x
    x = 38,369,503,486.42/218,141.51
  6. Step 6: Final answer
    x = 175,892.72

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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.