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Finding the Fourth Proportional to 329,750.06, 455,103.99 and 208,902.56

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Solution

The fourth proportional to 329,750.06, 455,103.99 and 208,902.56 is: 288,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,750.06 : 455,103.99 = 208,902.56 : x
  2. Step 2: Convert to fraction form
    329,750.06/455,103.99 = 208,902.56/x
  3. Step 3: Cross multiply
    329,750.06x = 455,103.99 × 208,902.56
  4. Step 4: Simplify right side
    329,750.06x = 95,072,386,301.69
  5. Step 5: Solve for x
    x = 95,072,386,301.69/329,750.06
  6. Step 6: Final answer
    x = 288,316.51

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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.