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Finding the Fourth Proportional to 203,359.34, 280,602.92 and 126,866.28

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Solution

The fourth proportional to 203,359.34, 280,602.92 and 126,866.28 is: 175,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,359.34 : 280,602.92 = 126,866.28 : x
  2. Step 2: Convert to fraction form
    203,359.34/280,602.92 = 126,866.28/x
  3. Step 3: Cross multiply
    203,359.34x = 280,602.92 × 126,866.28
  4. Step 4: Simplify right side
    203,359.34x = 35,599,047,983.21
  5. Step 5: Solve for x
    x = 35,599,047,983.21/203,359.34
  6. Step 6: Final answer
    x = 175,054.90

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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.