Home / 268,977.20-403,465.80-91,684.40

Finding the Fourth Proportional to 268,977.20, 403,465.80 and 91,684.40

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Solution

The fourth proportional to 268,977.20, 403,465.80 and 91,684.40 is: 137,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,977.20 : 403,465.80 = 91,684.40 : x
  2. Step 2: Convert to fraction form
    268,977.20/403,465.80 = 91,684.40/x
  3. Step 3: Cross multiply
    268,977.20x = 403,465.80 × 91,684.40
  4. Step 4: Simplify right side
    268,977.20x = 36,991,519,793.52
  5. Step 5: Solve for x
    x = 36,991,519,793.52/268,977.20
  6. Step 6: Final answer
    x = 137,526.60

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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.