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Finding the Fourth Proportional to 354,590.46, 489,323.61 and 201,645.27

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Solution

The fourth proportional to 354,590.46, 489,323.61 and 201,645.27 is: 278,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,590.46 : 489,323.61 = 201,645.27 : x
  2. Step 2: Convert to fraction form
    354,590.46/489,323.61 = 201,645.27/x
  3. Step 3: Cross multiply
    354,590.46x = 489,323.61 × 201,645.27
  4. Step 4: Simplify right side
    354,590.46x = 98,669,791,455.82
  5. Step 5: Solve for x
    x = 98,669,791,455.82/354,590.46
  6. Step 6: Final answer
    x = 278,264.09

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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.