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Finding the Fourth Proportional to 511,451.94, 767,208.64 and 156,469.02

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Solution

The fourth proportional to 511,451.94, 767,208.64 and 156,469.02 is: 234,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,451.94 : 767,208.64 = 156,469.02 : x
  2. Step 2: Convert to fraction form
    511,451.94/767,208.64 = 156,469.02/x
  3. Step 3: Cross multiply
    511,451.94x = 767,208.64 × 156,469.02
  4. Step 4: Simplify right side
    511,451.94x = 120,044,384,036.33
  5. Step 5: Solve for x
    x = 120,044,384,036.33/511,451.94
  6. Step 6: Final answer
    x = 234,712.93

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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.