Home / 442,186.80-663,280.20-161,905.20

Finding the Fourth Proportional to 442,186.80, 663,280.20 and 161,905.20

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Solution

The fourth proportional to 442,186.80, 663,280.20 and 161,905.20 is: 242,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,186.80 : 663,280.20 = 161,905.20 : x
  2. Step 2: Convert to fraction form
    442,186.80/663,280.20 = 161,905.20/x
  3. Step 3: Cross multiply
    442,186.80x = 663,280.20 × 161,905.20
  4. Step 4: Simplify right side
    442,186.80x = 107,388,513,437.04
  5. Step 5: Solve for x
    x = 107,388,513,437.04/442,186.80
  6. Step 6: Final answer
    x = 242,857.80

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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.