Home / 228,392.11-315,174.27-126,421.75

Finding the Fourth Proportional to 228,392.11, 315,174.27 and 126,421.75

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Solution

The fourth proportional to 228,392.11, 315,174.27 and 126,421.75 is: 174,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,392.11 : 315,174.27 = 126,421.75 : x
  2. Step 2: Convert to fraction form
    228,392.11/315,174.27 = 126,421.75/x
  3. Step 3: Cross multiply
    228,392.11x = 315,174.27 × 126,421.75
  4. Step 4: Simplify right side
    228,392.11x = 39,844,882,768.37
  5. Step 5: Solve for x
    x = 39,844,882,768.37/228,392.11
  6. Step 6: Final answer
    x = 174,458.23

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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.