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Finding the Fourth Proportional to 204,649.52, 282,281.02 and 128,035.67

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Solution

The fourth proportional to 204,649.52, 282,281.02 and 128,035.67 is: 176,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,649.52 : 282,281.02 = 128,035.67 : x
  2. Step 2: Convert to fraction form
    204,649.52/282,281.02 = 128,035.67/x
  3. Step 3: Cross multiply
    204,649.52x = 282,281.02 × 128,035.67
  4. Step 4: Simplify right side
    204,649.52x = 36,142,037,792.49
  5. Step 5: Solve for x
    x = 36,142,037,792.49/204,649.52
  6. Step 6: Final answer
    x = 176,604.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.