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Finding the Fourth Proportional to 354,700.86, 489,483.15 and 193,558.65

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Solution

The fourth proportional to 354,700.86, 489,483.15 and 193,558.65 is: 267,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,700.86 : 489,483.15 = 193,558.65 : x
  2. Step 2: Convert to fraction form
    354,700.86/489,483.15 = 193,558.65/x
  3. Step 3: Cross multiply
    354,700.86x = 489,483.15 × 193,558.65
  4. Step 4: Simplify right side
    354,700.86x = 94,743,696,239.11
  5. Step 5: Solve for x
    x = 94,743,696,239.11/354,700.86
  6. Step 6: Final answer
    x = 267,108.73

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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.