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Finding the Fourth Proportional to 228,407.61, 342,385.40 and 108,253.39

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Solution

The fourth proportional to 228,407.61, 342,385.40 and 108,253.39 is: 162,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,407.61 : 342,385.40 = 108,253.39 : x
  2. Step 2: Convert to fraction form
    228,407.61/342,385.40 = 108,253.39/x
  3. Step 3: Cross multiply
    228,407.61x = 342,385.40 × 108,253.39
  4. Step 4: Simplify right side
    228,407.61x = 37,064,380,236.51
  5. Step 5: Solve for x
    x = 37,064,380,236.51/228,407.61
  6. Step 6: Final answer
    x = 162,272.97

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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.