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Finding the Fourth Proportional to 225,602.30, 311,331.19 and 125,000.30

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Solution

The fourth proportional to 225,602.30, 311,331.19 and 125,000.30 is: 172,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,602.30 : 311,331.19 = 125,000.30 : x
  2. Step 2: Convert to fraction form
    225,602.30/311,331.19 = 125,000.30/x
  3. Step 3: Cross multiply
    225,602.30x = 311,331.19 × 125,000.30
  4. Step 4: Simplify right side
    225,602.30x = 38,916,492,615.18
  5. Step 5: Solve for x
    x = 38,916,492,615.18/225,602.30
  6. Step 6: Final answer
    x = 172,500.42

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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.