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Finding the Fourth Proportional to 355,069.92, 489,988.90 and 193,925.62

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Solution

The fourth proportional to 355,069.92, 489,988.90 and 193,925.62 is: 267,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,069.92 : 489,988.90 = 193,925.62 : x
  2. Step 2: Convert to fraction form
    355,069.92/489,988.90 = 193,925.62/x
  3. Step 3: Cross multiply
    355,069.92x = 489,988.90 × 193,925.62
  4. Step 4: Simplify right side
    355,069.92x = 95,021,399,515.83
  5. Step 5: Solve for x
    x = 95,021,399,515.83/355,069.92
  6. Step 6: Final answer
    x = 267,613.21

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1.5x scale

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.