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Finding the Fourth Proportional to 353,454.58, 487,769.43 and 192,310.84

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Solution

The fourth proportional to 353,454.58, 487,769.43 and 192,310.84 is: 265,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,454.58 : 487,769.43 = 192,310.84 : x
  2. Step 2: Convert to fraction form
    353,454.58/487,769.43 = 192,310.84/x
  3. Step 3: Cross multiply
    353,454.58x = 487,769.43 × 192,310.84
  4. Step 4: Simplify right side
    353,454.58x = 93,803,348,809.62
  5. Step 5: Solve for x
    x = 93,803,348,809.62/353,454.58
  6. Step 6: Final answer
    x = 265,390.11

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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.