Home / 261,717.78-392,568.30-109,995.24

Finding the Fourth Proportional to 261,717.78, 392,568.30 and 109,995.24

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Solution

The fourth proportional to 261,717.78, 392,568.30 and 109,995.24 is: 164,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,717.78 : 392,568.30 = 109,995.24 : x
  2. Step 2: Convert to fraction form
    261,717.78/392,568.30 = 109,995.24/x
  3. Step 3: Cross multiply
    261,717.78x = 392,568.30 × 109,995.24
  4. Step 4: Simplify right side
    261,717.78x = 43,180,644,374.89
  5. Step 5: Solve for x
    x = 43,180,644,374.89/261,717.78
  6. Step 6: Final answer
    x = 164,989.34

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1.5x scale

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.