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Finding the Fourth Proportional to 354,440.32, 489,006.72 and 201,463.04

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Solution

The fourth proportional to 354,440.32, 489,006.72 and 201,463.04 is: 277,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,440.32 : 489,006.72 = 201,463.04 : x
  2. Step 2: Convert to fraction form
    354,440.32/489,006.72 = 201,463.04/x
  3. Step 3: Cross multiply
    354,440.32x = 489,006.72 × 201,463.04
  4. Step 4: Simplify right side
    354,440.32x = 98,516,780,391.63
  5. Step 5: Solve for x
    x = 98,516,780,391.63/354,440.32
  6. Step 6: Final answer
    x = 277,950.26

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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.