Home / 295,811.24-443,651.58-85,403.40

Finding the Fourth Proportional to 295,811.24, 443,651.58 and 85,403.40

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Solution

The fourth proportional to 295,811.24, 443,651.58 and 85,403.40 is: 128,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,811.24 : 443,651.58 = 85,403.40 : x
  2. Step 2: Convert to fraction form
    295,811.24/443,651.58 = 85,403.40/x
  3. Step 3: Cross multiply
    295,811.24x = 443,651.58 × 85,403.40
  4. Step 4: Simplify right side
    295,811.24x = 37,889,353,347.37
  5. Step 5: Solve for x
    x = 37,889,353,347.37/295,811.24
  6. Step 6: Final answer
    x = 128,086.25

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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.