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Finding the Fourth Proportional to 304,862.56, 420,605.04 and 191,693.92

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Solution

The fourth proportional to 304,862.56, 420,605.04 and 191,693.92 is: 264,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,862.56 : 420,605.04 = 191,693.92 : x
  2. Step 2: Convert to fraction form
    304,862.56/420,605.04 = 191,693.92/x
  3. Step 3: Cross multiply
    304,862.56x = 420,605.04 × 191,693.92
  4. Step 4: Simplify right side
    304,862.56x = 80,627,428,889.36
  5. Step 5: Solve for x
    x = 80,627,428,889.36/304,862.56
  6. Step 6: Final answer
    x = 264,471.40

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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.