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Finding the Fourth Proportional to 228,875.70, 315,845.17 and 126,901.36

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Solution

The fourth proportional to 228,875.70, 315,845.17 and 126,901.36 is: 175,122.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,875.70 : 315,845.17 = 126,901.36 : x
  2. Step 2: Convert to fraction form
    228,875.70/315,845.17 = 126,901.36/x
  3. Step 3: Cross multiply
    228,875.70x = 315,845.17 × 126,901.36
  4. Step 4: Simplify right side
    228,875.70x = 40,081,181,525.49
  5. Step 5: Solve for x
    x = 40,081,181,525.49/228,875.70
  6. Step 6: Final answer
    x = 175,122.05

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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.