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Finding the Fourth Proportional to 228,713.90, 315,599.48 and 126,713.58

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Solution

The fourth proportional to 228,713.90, 315,599.48 and 126,713.58 is: 174,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,713.90 : 315,599.48 = 126,713.58 : x
  2. Step 2: Convert to fraction form
    228,713.90/315,599.48 = 126,713.58/x
  3. Step 3: Cross multiply
    228,713.90x = 315,599.48 × 126,713.58
  4. Step 4: Simplify right side
    228,713.90x = 39,990,740,877.82
  5. Step 5: Solve for x
    x = 39,990,740,877.82/228,713.90
  6. Step 6: Final answer
    x = 174,850.51

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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.