Home / 228,344.09-315,109.85-124,977.78

Finding the Fourth Proportional to 228,344.09, 315,109.85 and 124,977.78

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Solution

The fourth proportional to 228,344.09, 315,109.85 and 124,977.78 is: 172,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,344.09 : 315,109.85 = 124,977.78 : x
  2. Step 2: Convert to fraction form
    228,344.09/315,109.85 = 124,977.78/x
  3. Step 3: Cross multiply
    228,344.09x = 315,109.85 × 124,977.78
  4. Step 4: Simplify right side
    228,344.09x = 39,381,728,884.24
  5. Step 5: Solve for x
    x = 39,381,728,884.24/228,344.09
  6. Step 6: Final answer
    x = 172,466.60

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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.