Home / 515,431.32-772,961.72-178,380.48

Finding the Fourth Proportional to 515,431.32, 772,961.72 and 178,380.48

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Solution

The fourth proportional to 515,431.32, 772,961.72 and 178,380.48 is: 267,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,431.32 : 772,961.72 = 178,380.48 : x
  2. Step 2: Convert to fraction form
    515,431.32/772,961.72 = 178,380.48/x
  3. Step 3: Cross multiply
    515,431.32x = 772,961.72 × 178,380.48
  4. Step 4: Simplify right side
    515,431.32x = 137,881,282,635.23
  5. Step 5: Solve for x
    x = 137,881,282,635.23/515,431.32
  6. Step 6: Final answer
    x = 267,506.61

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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.