Home / 312,787.39-431,635.02-169,544.35

Finding the Fourth Proportional to 312,787.39, 431,635.02 and 169,544.35

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Solution

The fourth proportional to 312,787.39, 431,635.02 and 169,544.35 is: 233,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,787.39 : 431,635.02 = 169,544.35 : x
  2. Step 2: Convert to fraction form
    312,787.39/431,635.02 = 169,544.35/x
  3. Step 3: Cross multiply
    312,787.39x = 431,635.02 × 169,544.35
  4. Step 4: Simplify right side
    312,787.39x = 73,181,278,903.14
  5. Step 5: Solve for x
    x = 73,181,278,903.14/312,787.39
  6. Step 6: Final answer
    x = 233,964.93

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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.