Home / 261,396.32-392,113.22-109,440.49

Finding the Fourth Proportional to 261,396.32, 392,113.22 and 109,440.49

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Solution

The fourth proportional to 261,396.32, 392,113.22 and 109,440.49 is: 164,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,396.32 : 392,113.22 = 109,440.49 : x
  2. Step 2: Convert to fraction form
    261,396.32/392,113.22 = 109,440.49/x
  3. Step 3: Cross multiply
    261,396.32x = 392,113.22 × 109,440.49
  4. Step 4: Simplify right side
    261,396.32x = 42,913,061,803.85
  5. Step 5: Solve for x
    x = 42,913,061,803.85/261,396.32
  6. Step 6: Final answer
    x = 164,168.58

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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.