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Finding the Fourth Proportional to 348,536.31, 520,443.61 and 276,652.45

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Solution

The fourth proportional to 348,536.31, 520,443.61 and 276,652.45 is: 413,104.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,536.31 : 520,443.61 = 276,652.45 : x
  2. Step 2: Convert to fraction form
    348,536.31/520,443.61 = 276,652.45/x
  3. Step 3: Cross multiply
    348,536.31x = 520,443.61 × 276,652.45
  4. Step 4: Simplify right side
    348,536.31x = 143,981,999,793.35
  5. Step 5: Solve for x
    x = 143,981,999,793.35/348,536.31
  6. Step 6: Final answer
    x = 413,104.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.