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Finding the Fourth Proportional to 370,353.87, 555,764.33 and 145,685.11

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Solution

The fourth proportional to 370,353.87, 555,764.33 and 145,685.11 is: 218,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,353.87 : 555,764.33 = 145,685.11 : x
  2. Step 2: Convert to fraction form
    370,353.87/555,764.33 = 145,685.11/x
  3. Step 3: Cross multiply
    370,353.87x = 555,764.33 × 145,685.11
  4. Step 4: Simplify right side
    370,353.87x = 80,966,586,524.93
  5. Step 5: Solve for x
    x = 80,966,586,524.93/370,353.87
  6. Step 6: Final answer
    x = 218,619.52

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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.