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Finding the Fourth Proportional to 353,255.81, 487,488.39 and 192,107.39

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Solution

The fourth proportional to 353,255.81, 487,488.39 and 192,107.39 is: 265,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,255.81 : 487,488.39 = 192,107.39 : x
  2. Step 2: Convert to fraction form
    353,255.81/487,488.39 = 192,107.39/x
  3. Step 3: Cross multiply
    353,255.81x = 487,488.39 × 192,107.39
  4. Step 4: Simplify right side
    353,255.81x = 93,650,119,820.76
  5. Step 5: Solve for x
    x = 93,650,119,820.76/353,255.81
  6. Step 6: Final answer
    x = 265,105.68

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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.