Home / 203,602.40-280,674.24-142,991.36

Finding the Fourth Proportional to 203,602.40, 280,674.24 and 142,991.36

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Solution

The fourth proportional to 203,602.40, 280,674.24 and 142,991.36 is: 197,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,602.40 : 280,674.24 = 142,991.36 : x
  2. Step 2: Convert to fraction form
    203,602.40/280,674.24 = 142,991.36/x
  3. Step 3: Cross multiply
    203,602.40x = 280,674.24 × 142,991.36
  4. Step 4: Simplify right side
    203,602.40x = 40,133,991,294.57
  5. Step 5: Solve for x
    x = 40,133,991,294.57/203,602.40
  6. Step 6: Final answer
    x = 197,119.44

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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.