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Finding the Fourth Proportional to 228,329.40, 342,494.10 and 80,566.20

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Solution

The fourth proportional to 228,329.40, 342,494.10 and 80,566.20 is: 120,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,329.40 : 342,494.10 = 80,566.20 : x
  2. Step 2: Convert to fraction form
    228,329.40/342,494.10 = 80,566.20/x
  3. Step 3: Cross multiply
    228,329.40x = 342,494.10 × 80,566.20
  4. Step 4: Simplify right side
    228,329.40x = 27,593,448,159.42
  5. Step 5: Solve for x
    x = 27,593,448,159.42/228,329.40
  6. Step 6: Final answer
    x = 120,849.30

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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.