Home / 231,775.20-347,662.80-91,461.60

Finding the Fourth Proportional to 231,775.20, 347,662.80 and 91,461.60

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Solution

The fourth proportional to 231,775.20, 347,662.80 and 91,461.60 is: 137,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,775.20 : 347,662.80 = 91,461.60 : x
  2. Step 2: Convert to fraction form
    231,775.20/347,662.80 = 91,461.60/x
  3. Step 3: Cross multiply
    231,775.20x = 347,662.80 × 91,461.60
  4. Step 4: Simplify right side
    231,775.20x = 31,797,795,948.48
  5. Step 5: Solve for x
    x = 31,797,795,948.48/231,775.20
  6. Step 6: Final answer
    x = 137,192.40

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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.