Home / 228,399.17-315,186.34-126,418.68

Finding the Fourth Proportional to 228,399.17, 315,186.34 and 126,418.68

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Solution

The fourth proportional to 228,399.17, 315,186.34 and 126,418.68 is: 174,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,399.17 : 315,186.34 = 126,418.68 : x
  2. Step 2: Convert to fraction form
    228,399.17/315,186.34 = 126,418.68/x
  3. Step 3: Cross multiply
    228,399.17x = 315,186.34 × 126,418.68
  4. Step 4: Simplify right side
    228,399.17x = 39,845,441,199.44
  5. Step 5: Solve for x
    x = 39,845,441,199.44/228,399.17
  6. Step 6: Final answer
    x = 174,455.28

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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.