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Finding the Fourth Proportional to 223,521.73, 335,348.51 and 90,497.45

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Solution

The fourth proportional to 223,521.73, 335,348.51 and 90,497.45 is: 135,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,521.73 : 335,348.51 = 90,497.45 : x
  2. Step 2: Convert to fraction form
    223,521.73/335,348.51 = 90,497.45/x
  3. Step 3: Cross multiply
    223,521.73x = 335,348.51 × 90,497.45
  4. Step 4: Simplify right side
    223,521.73x = 30,348,185,402.18
  5. Step 5: Solve for x
    x = 30,348,185,402.18/223,521.73
  6. Step 6: Final answer
    x = 135,772.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.