Home / 312,189.87-430,822.02-168,949.95

Finding the Fourth Proportional to 312,189.87, 430,822.02 and 168,949.95

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Solution

The fourth proportional to 312,189.87, 430,822.02 and 168,949.95 is: 233,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,189.87 : 430,822.02 = 168,949.95 : x
  2. Step 2: Convert to fraction form
    312,189.87/430,822.02 = 168,949.95/x
  3. Step 3: Cross multiply
    312,189.87x = 430,822.02 × 168,949.95
  4. Step 4: Simplify right side
    312,189.87x = 72,787,357,755.88
  5. Step 5: Solve for x
    x = 72,787,357,755.88/312,189.87
  6. Step 6: Final answer
    x = 233,150.92

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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.