Home / 461,319.56-691,975.20-145,776.52

Finding the Fourth Proportional to 461,319.56, 691,975.20 and 145,776.52

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Solution

The fourth proportional to 461,319.56, 691,975.20 and 145,776.52 is: 218,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,319.56 : 691,975.20 = 145,776.52 : x
  2. Step 2: Convert to fraction form
    461,319.56/691,975.20 = 145,776.52/x
  3. Step 3: Cross multiply
    461,319.56x = 691,975.20 × 145,776.52
  4. Step 4: Simplify right side
    461,319.56x = 100,873,736,582.30
  5. Step 5: Solve for x
    x = 100,873,736,582.30/461,319.56
  6. Step 6: Final answer
    x = 218,663.47

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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.