Home / 228,246.09-342,302.21-85,988.72

Finding the Fourth Proportional to 228,246.09, 342,302.21 and 85,988.72

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Solution

The fourth proportional to 228,246.09, 342,302.21 and 85,988.72 is: 128,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,246.09 : 342,302.21 = 85,988.72 : x
  2. Step 2: Convert to fraction form
    228,246.09/342,302.21 = 85,988.72/x
  3. Step 3: Cross multiply
    228,246.09x = 342,302.21 × 85,988.72
  4. Step 4: Simplify right side
    228,246.09x = 29,434,126,749.62
  5. Step 5: Solve for x
    x = 29,434,126,749.62/228,246.09
  6. Step 6: Final answer
    x = 128,957.86

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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.