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Finding the Fourth Proportional to 503,513.19, 755,269.80 and 187,994.70

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Solution

The fourth proportional to 503,513.19, 755,269.80 and 187,994.70 is: 281,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,513.19 : 755,269.80 = 187,994.70 : x
  2. Step 2: Convert to fraction form
    503,513.19/755,269.80 = 187,994.70/x
  3. Step 3: Cross multiply
    503,513.19x = 755,269.80 × 187,994.70
  4. Step 4: Simplify right side
    503,513.19x = 141,986,719,470.06
  5. Step 5: Solve for x
    x = 141,986,719,470.06/503,513.19
  6. Step 6: Final answer
    x = 281,992.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.