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Finding the Fourth Proportional to 518,187.58, 777,507.26 and 181,469.77

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Solution

The fourth proportional to 518,187.58, 777,507.26 and 181,469.77 is: 272,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,187.58 : 777,507.26 = 181,469.77 : x
  2. Step 2: Convert to fraction form
    518,187.58/777,507.26 = 181,469.77/x
  3. Step 3: Cross multiply
    518,187.58x = 777,507.26 × 181,469.77
  4. Step 4: Simplify right side
    518,187.58x = 141,094,060,794.41
  5. Step 5: Solve for x
    x = 141,094,060,794.41/518,187.58
  6. Step 6: Final answer
    x = 272,283.76

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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.