Home / 451,001.04-676,723.86-211,131.20

Finding the Fourth Proportional to 451,001.04, 676,723.86 and 211,131.20

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Solution

The fourth proportional to 451,001.04, 676,723.86 and 211,131.20 is: 316,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,001.04 : 676,723.86 = 211,131.20 : x
  2. Step 2: Convert to fraction form
    451,001.04/676,723.86 = 211,131.20/x
  3. Step 3: Cross multiply
    451,001.04x = 676,723.86 × 211,131.20
  4. Step 4: Simplify right side
    451,001.04x = 142,877,522,322.24
  5. Step 5: Solve for x
    x = 142,877,522,322.24/451,001.04
  6. Step 6: Final answer
    x = 316,800.87

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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.