Home / 263,472.77-395,272.04-85,980.11

Finding the Fourth Proportional to 263,472.77, 395,272.04 and 85,980.11

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Solution

The fourth proportional to 263,472.77, 395,272.04 and 85,980.11 is: 128,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,472.77 : 395,272.04 = 85,980.11 : x
  2. Step 2: Convert to fraction form
    263,472.77/395,272.04 = 85,980.11/x
  3. Step 3: Cross multiply
    263,472.77x = 395,272.04 × 85,980.11
  4. Step 4: Simplify right side
    263,472.77x = 33,985,531,072.86
  5. Step 5: Solve for x
    x = 33,985,531,072.86/263,472.77
  6. Step 6: Final answer
    x = 128,990.68

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1.5x scale

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.