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Finding the Fourth Proportional to 248,510.70, 372,766.05 and 90,744.30

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Solution

The fourth proportional to 248,510.70, 372,766.05 and 90,744.30 is: 136,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,510.70 : 372,766.05 = 90,744.30 : x
  2. Step 2: Convert to fraction form
    248,510.70/372,766.05 = 90,744.30/x
  3. Step 3: Cross multiply
    248,510.70x = 372,766.05 × 90,744.30
  4. Step 4: Simplify right side
    248,510.70x = 33,826,394,271.02
  5. Step 5: Solve for x
    x = 33,826,394,271.02/248,510.70
  6. Step 6: Final answer
    x = 136,116.45

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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.