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Finding the Fourth Proportional to 503,143.80, 754,694.10 and 170,719.80

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Solution

The fourth proportional to 503,143.80, 754,694.10 and 170,719.80 is: 256,072.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,143.80 : 754,694.10 = 170,719.80 : x
  2. Step 2: Convert to fraction form
    503,143.80/754,694.10 = 170,719.80/x
  3. Step 3: Cross multiply
    503,143.80x = 754,694.10 × 170,719.80
  4. Step 4: Simplify right side
    503,143.80x = 128,841,225,813.18
  5. Step 5: Solve for x
    x = 128,841,225,813.18/503,143.80
  6. Step 6: Final answer
    x = 256,072.37

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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.