Home / 228,505.29-342,800.09-76,687.40

Finding the Fourth Proportional to 228,505.29, 342,800.09 and 76,687.40

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Solution

The fourth proportional to 228,505.29, 342,800.09 and 76,687.40 is: 115,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,505.29 : 342,800.09 = 76,687.40 : x
  2. Step 2: Convert to fraction form
    228,505.29/342,800.09 = 76,687.40/x
  3. Step 3: Cross multiply
    228,505.29x = 342,800.09 × 76,687.40
  4. Step 4: Simplify right side
    228,505.29x = 26,288,445,524.43
  5. Step 5: Solve for x
    x = 26,288,445,524.43/228,505.29
  6. Step 6: Final answer
    x = 115,045.24

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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.