Home / 228,741.57-315,654.30-126,771.35

Finding the Fourth Proportional to 228,741.57, 315,654.30 and 126,771.35

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Solution

The fourth proportional to 228,741.57, 315,654.30 and 126,771.35 is: 174,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,741.57 : 315,654.30 = 126,771.35 : x
  2. Step 2: Convert to fraction form
    228,741.57/315,654.30 = 126,771.35/x
  3. Step 3: Cross multiply
    228,741.57x = 315,654.30 × 126,771.35
  4. Step 4: Simplify right side
    228,741.57x = 40,015,920,166.03
  5. Step 5: Solve for x
    x = 40,015,920,166.03/228,741.57
  6. Step 6: Final answer
    x = 174,939.43

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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.