Home / 228,421.20-315,216.62-126,446.72

Finding the Fourth Proportional to 228,421.20, 315,216.62 and 126,446.72

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Solution

The fourth proportional to 228,421.20, 315,216.62 and 126,446.72 is: 174,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,421.20 : 315,216.62 = 126,446.72 : x
  2. Step 2: Convert to fraction form
    228,421.20/315,216.62 = 126,446.72/x
  3. Step 3: Cross multiply
    228,421.20x = 315,216.62 × 126,446.72
  4. Step 4: Simplify right side
    228,421.20x = 39,858,107,688.49
  5. Step 5: Solve for x
    x = 39,858,107,688.49/228,421.20
  6. Step 6: Final answer
    x = 174,493.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.