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Finding the Fourth Proportional to 375,343.46, 518,011.20 and 214,222.91

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Solution

The fourth proportional to 375,343.46, 518,011.20 and 214,222.91 is: 295,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,343.46 : 518,011.20 = 214,222.91 : x
  2. Step 2: Convert to fraction form
    375,343.46/518,011.20 = 214,222.91/x
  3. Step 3: Cross multiply
    375,343.46x = 518,011.20 × 214,222.91
  4. Step 4: Simplify right side
    375,343.46x = 110,969,864,086.54
  5. Step 5: Solve for x
    x = 110,969,864,086.54/375,343.46
  6. Step 6: Final answer
    x = 295,648.86

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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.