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Finding the Fourth Proportional to 312,860.88, 469,266.84 and 88,212.24

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Solution

The fourth proportional to 312,860.88, 469,266.84 and 88,212.24 is: 132,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,860.88 : 469,266.84 = 88,212.24 : x
  2. Step 2: Convert to fraction form
    312,860.88/469,266.84 = 88,212.24/x
  3. Step 3: Cross multiply
    312,860.88x = 469,266.84 × 88,212.24
  4. Step 4: Simplify right side
    312,860.88x = 41,395,079,114.12
  5. Step 5: Solve for x
    x = 41,395,079,114.12/312,860.88
  6. Step 6: Final answer
    x = 132,311.46

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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.