Home / 265,936.32-398,787.60-99,607.68

Finding the Fourth Proportional to 265,936.32, 398,787.60 and 99,607.68

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Solution

The fourth proportional to 265,936.32, 398,787.60 and 99,607.68 is: 149,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,936.32 : 398,787.60 = 99,607.68 : x
  2. Step 2: Convert to fraction form
    265,936.32/398,787.60 = 99,607.68/x
  3. Step 3: Cross multiply
    265,936.32x = 398,787.60 × 99,607.68
  4. Step 4: Simplify right side
    265,936.32x = 39,722,307,648.77
  5. Step 5: Solve for x
    x = 39,722,307,648.77/265,936.32
  6. Step 6: Final answer
    x = 149,367.74

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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.