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Finding the Fourth Proportional to 361,661.46, 542,492.18 and 121,755.30

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Solution

The fourth proportional to 361,661.46, 542,492.18 and 121,755.30 is: 182,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,661.46 : 542,492.18 = 121,755.30 : x
  2. Step 2: Convert to fraction form
    361,661.46/542,492.18 = 121,755.30/x
  3. Step 3: Cross multiply
    361,661.46x = 542,492.18 × 121,755.30
  4. Step 4: Simplify right side
    361,661.46x = 66,051,299,673.41
  5. Step 5: Solve for x
    x = 66,051,299,673.41/361,661.46
  6. Step 6: Final answer
    x = 182,632.95

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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.