Home / 312,889.02-431,787.78-169,649.10

Finding the Fourth Proportional to 312,889.02, 431,787.78 and 169,649.10

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Solution

The fourth proportional to 312,889.02, 431,787.78 and 169,649.10 is: 234,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,889.02 : 431,787.78 = 169,649.10 : x
  2. Step 2: Convert to fraction form
    312,889.02/431,787.78 = 169,649.10/x
  3. Step 3: Cross multiply
    312,889.02x = 431,787.78 × 169,649.10
  4. Step 4: Simplify right side
    312,889.02x = 73,252,408,268.00
  5. Step 5: Solve for x
    x = 73,252,408,268.00/312,889.02
  6. Step 6: Final answer
    x = 234,116.26

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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.