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Finding the Fourth Proportional to 253,666.44, 350,073.36 and 140,490

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Solution

The fourth proportional to 253,666.44, 350,073.36 and 140,490 is: 193,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,666.44 : 350,073.36 = 140,490 : x
  2. Step 2: Convert to fraction form
    253,666.44/350,073.36 = 140,490/x
  3. Step 3: Cross multiply
    253,666.44x = 350,073.36 × 140,490
  4. Step 4: Simplify right side
    253,666.44x = 49,181,806,346.40
  5. Step 5: Solve for x
    x = 49,181,806,346.40/253,666.44
  6. Step 6: Final answer
    x = 193,883.77

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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.