Home / 228,490.27-315,326.42-126,515.72

Finding the Fourth Proportional to 228,490.27, 315,326.42 and 126,515.72

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Solution

The fourth proportional to 228,490.27, 315,326.42 and 126,515.72 is: 174,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,490.27 : 315,326.42 = 126,515.72 : x
  2. Step 2: Convert to fraction form
    228,490.27/315,326.42 = 126,515.72/x
  3. Step 3: Cross multiply
    228,490.27x = 315,326.42 × 126,515.72
  4. Step 4: Simplify right side
    228,490.27x = 39,893,749,691.49
  5. Step 5: Solve for x
    x = 39,893,749,691.49/228,490.27
  6. Step 6: Final answer
    x = 174,597.15

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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.