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Finding the Fourth Proportional to 292,299.40, 438,843.30 and 187,323.40

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Solution

The fourth proportional to 292,299.40, 438,843.30 and 187,323.40 is: 281,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,299.40 : 438,843.30 = 187,323.40 : x
  2. Step 2: Convert to fraction form
    292,299.40/438,843.30 = 187,323.40/x
  3. Step 3: Cross multiply
    292,299.40x = 438,843.30 × 187,323.40
  4. Step 4: Simplify right side
    292,299.40x = 82,205,619,023.22
  5. Step 5: Solve for x
    x = 82,205,619,023.22/292,299.40
  6. Step 6: Final answer
    x = 281,237.73

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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.