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Finding the Fourth Proportional to 303,239.61, 418,605.17 and 195,862.01

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Solution

The fourth proportional to 303,239.61, 418,605.17 and 195,862.01 is: 270,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,239.61 : 418,605.17 = 195,862.01 : x
  2. Step 2: Convert to fraction form
    303,239.61/418,605.17 = 195,862.01/x
  3. Step 3: Cross multiply
    303,239.61x = 418,605.17 × 195,862.01
  4. Step 4: Simplify right side
    303,239.61x = 81,988,849,863.57
  5. Step 5: Solve for x
    x = 81,988,849,863.57/303,239.61
  6. Step 6: Final answer
    x = 270,376.45

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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.