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Finding the Fourth Proportional to 295,217.20, 442,169.70 and 228,440.80

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Solution

The fourth proportional to 295,217.20, 442,169.70 and 228,440.80 is: 342,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,217.20 : 442,169.70 = 228,440.80 : x
  2. Step 2: Convert to fraction form
    295,217.20/442,169.70 = 228,440.80/x
  3. Step 3: Cross multiply
    295,217.20x = 442,169.70 × 228,440.80
  4. Step 4: Simplify right side
    295,217.20x = 101,009,600,003.76
  5. Step 5: Solve for x
    x = 101,009,600,003.76/295,217.20
  6. Step 6: Final answer
    x = 342,153.51

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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.