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Finding the Fourth Proportional to 353,257.31, 487,490.46 and 192,108.89

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Solution

The fourth proportional to 353,257.31, 487,490.46 and 192,108.89 is: 265,107.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,257.31 : 487,490.46 = 192,108.89 : x
  2. Step 2: Convert to fraction form
    353,257.31/487,490.46 = 192,108.89/x
  3. Step 3: Cross multiply
    353,257.31x = 487,490.46 × 192,108.89
  4. Step 4: Simplify right side
    353,257.31x = 93,651,248,718.74
  5. Step 5: Solve for x
    x = 93,651,248,718.74/353,257.31
  6. Step 6: Final answer
    x = 265,107.75

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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.