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Finding the Fourth Proportional to 355,693.29, 490,872.47 and 204,838.89

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Solution

The fourth proportional to 355,693.29, 490,872.47 and 204,838.89 is: 282,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,693.29 : 490,872.47 = 204,838.89 : x
  2. Step 2: Convert to fraction form
    355,693.29/490,872.47 = 204,838.89/x
  3. Step 3: Cross multiply
    355,693.29x = 490,872.47 × 204,838.89
  4. Step 4: Simplify right side
    355,693.29x = 100,549,770,862.16
  5. Step 5: Solve for x
    x = 100,549,770,862.16/355,693.29
  6. Step 6: Final answer
    x = 282,686.72

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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.