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Finding the Fourth Proportional to 228,502.39, 315,329.45 and 126,525.66

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Solution

The fourth proportional to 228,502.39, 315,329.45 and 126,525.66 is: 174,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,502.39 : 315,329.45 = 126,525.66 : x
  2. Step 2: Convert to fraction form
    228,502.39/315,329.45 = 126,525.66/x
  3. Step 3: Cross multiply
    228,502.39x = 315,329.45 × 126,525.66
  4. Step 4: Simplify right side
    228,502.39x = 39,897,266,778.69
  5. Step 5: Solve for x
    x = 39,897,266,778.69/228,502.39
  6. Step 6: Final answer
    x = 174,603.28

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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.