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Finding the Fourth Proportional to 354,708.69, 489,508.41 and 193,574.13

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Solution

The fourth proportional to 354,708.69, 489,508.41 and 193,574.13 is: 267,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,708.69 : 489,508.41 = 193,574.13 : x
  2. Step 2: Convert to fraction form
    354,708.69/489,508.41 = 193,574.13/x
  3. Step 3: Cross multiply
    354,708.69x = 489,508.41 × 193,574.13
  4. Step 4: Simplify right side
    354,708.69x = 94,756,164,593.43
  5. Step 5: Solve for x
    x = 94,756,164,593.43/354,708.69
  6. Step 6: Final answer
    x = 267,137.98

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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.