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Finding the Fourth Proportional to 354,607.60, 489,341.42 and 193,453.04

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Solution

The fourth proportional to 354,607.60, 489,341.42 and 193,453.04 is: 266,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,607.60 : 489,341.42 = 193,453.04 : x
  2. Step 2: Convert to fraction form
    354,607.60/489,341.42 = 193,453.04/x
  3. Step 3: Cross multiply
    354,607.60x = 489,341.42 × 193,453.04
  4. Step 4: Simplify right side
    354,607.60x = 94,664,585,296.92
  5. Step 5: Solve for x
    x = 94,664,585,296.92/354,607.60
  6. Step 6: Final answer
    x = 266,955.88

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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.