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Finding the Fourth Proportional to 228,637.91, 315,511.35 and 125,270.25

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Solution

The fourth proportional to 228,637.91, 315,511.35 and 125,270.25 is: 172,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,637.91 : 315,511.35 = 125,270.25 : x
  2. Step 2: Convert to fraction form
    228,637.91/315,511.35 = 125,270.25/x
  3. Step 3: Cross multiply
    228,637.91x = 315,511.35 × 125,270.25
  4. Step 4: Simplify right side
    228,637.91x = 39,524,185,692.34
  5. Step 5: Solve for x
    x = 39,524,185,692.34/228,637.91
  6. Step 6: Final answer
    x = 172,868.04

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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.