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Finding the Fourth Proportional to 352,113.93, 485,351.31 and 275,500.89

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Solution

The fourth proportional to 352,113.93, 485,351.31 and 275,500.89 is: 379,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,113.93 : 485,351.31 = 275,500.89 : x
  2. Step 2: Convert to fraction form
    352,113.93/485,351.31 = 275,500.89/x
  3. Step 3: Cross multiply
    352,113.93x = 485,351.31 × 275,500.89
  4. Step 4: Simplify right side
    352,113.93x = 133,714,717,867.67
  5. Step 5: Solve for x
    x = 133,714,717,867.67/352,113.93
  6. Step 6: Final answer
    x = 379,748.45

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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.