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Finding the Fourth Proportional to 228,035.52, 342,053.28 and 138,096.36

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Solution

The fourth proportional to 228,035.52, 342,053.28 and 138,096.36 is: 207,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,035.52 : 342,053.28 = 138,096.36 : x
  2. Step 2: Convert to fraction form
    228,035.52/342,053.28 = 138,096.36/x
  3. Step 3: Cross multiply
    228,035.52x = 342,053.28 × 138,096.36
  4. Step 4: Simplify right side
    228,035.52x = 47,236,312,894.06
  5. Step 5: Solve for x
    x = 47,236,312,894.06/228,035.52
  6. Step 6: Final answer
    x = 207,144.54

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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.