Home / 228,986.40-343,479.60-79,176.90

Finding the Fourth Proportional to 228,986.40, 343,479.60 and 79,176.90

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Solution

The fourth proportional to 228,986.40, 343,479.60 and 79,176.90 is: 118,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,986.40 : 343,479.60 = 79,176.90 : x
  2. Step 2: Convert to fraction form
    228,986.40/343,479.60 = 79,176.90/x
  3. Step 3: Cross multiply
    228,986.40x = 343,479.60 × 79,176.90
  4. Step 4: Simplify right side
    228,986.40x = 27,195,649,941.24
  5. Step 5: Solve for x
    x = 27,195,649,941.24/228,986.40
  6. Step 6: Final answer
    x = 118,765.35

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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.