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Finding the Fourth Proportional to 354,833.88, 489,597.66 and 203,901.72

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Solution

The fourth proportional to 354,833.88, 489,597.66 and 203,901.72 is: 281,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,833.88 : 489,597.66 = 203,901.72 : x
  2. Step 2: Convert to fraction form
    354,833.88/489,597.66 = 203,901.72/x
  3. Step 3: Cross multiply
    354,833.88x = 489,597.66 × 203,901.72
  4. Step 4: Simplify right side
    354,833.88x = 99,829,804,981.98
  5. Step 5: Solve for x
    x = 99,829,804,981.98/354,833.88
  6. Step 6: Final answer
    x = 281,342.37

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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.