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Finding the Fourth Proportional to 372,178.28, 558,267.42 and 161,816.22

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Solution

The fourth proportional to 372,178.28, 558,267.42 and 161,816.22 is: 242,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,178.28 : 558,267.42 = 161,816.22 : x
  2. Step 2: Convert to fraction form
    372,178.28/558,267.42 = 161,816.22/x
  3. Step 3: Cross multiply
    372,178.28x = 558,267.42 × 161,816.22
  4. Step 4: Simplify right side
    372,178.28x = 90,336,723,653.55
  5. Step 5: Solve for x
    x = 90,336,723,653.55/372,178.28
  6. Step 6: Final answer
    x = 242,724.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.