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Finding the Fourth Proportional to 223,171.71, 307,995.95 and 126,392.47

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Solution

The fourth proportional to 223,171.71, 307,995.95 and 126,392.47 is: 174,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,171.71 : 307,995.95 = 126,392.47 : x
  2. Step 2: Convert to fraction form
    223,171.71/307,995.95 = 126,392.47/x
  3. Step 3: Cross multiply
    223,171.71x = 307,995.95 × 126,392.47
  4. Step 4: Simplify right side
    223,171.71x = 38,928,368,416.49
  5. Step 5: Solve for x
    x = 38,928,368,416.49/223,171.71
  6. Step 6: Final answer
    x = 174,432.36

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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.