Home / 288,636.60-398,323.02-161,320.44

Finding the Fourth Proportional to 288,636.60, 398,323.02 and 161,320.44

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Solution

The fourth proportional to 288,636.60, 398,323.02 and 161,320.44 is: 222,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,636.60 : 398,323.02 = 161,320.44 : x
  2. Step 2: Convert to fraction form
    288,636.60/398,323.02 = 161,320.44/x
  3. Step 3: Cross multiply
    288,636.60x = 398,323.02 × 161,320.44
  4. Step 4: Simplify right side
    288,636.60x = 64,257,644,848.53
  5. Step 5: Solve for x
    x = 64,257,644,848.53/288,636.60
  6. Step 6: Final answer
    x = 222,624.73

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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.