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Finding the Fourth Proportional to 228,551.34, 342,695.70 and 121,803.90

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Solution

The fourth proportional to 228,551.34, 342,695.70 and 121,803.90 is: 182,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,551.34 : 342,695.70 = 121,803.90 : x
  2. Step 2: Convert to fraction form
    228,551.34/342,695.70 = 121,803.90/x
  3. Step 3: Cross multiply
    228,551.34x = 342,695.70 × 121,803.90
  4. Step 4: Simplify right side
    228,551.34x = 41,741,672,773.23
  5. Step 5: Solve for x
    x = 41,741,672,773.23/228,551.34
  6. Step 6: Final answer
    x = 182,635.87

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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.