Home / 217,387.37-299,994.29-120,605.90

Finding the Fourth Proportional to 217,387.37, 299,994.29 and 120,605.90

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Solution

The fourth proportional to 217,387.37, 299,994.29 and 120,605.90 is: 166,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,387.37 : 299,994.29 = 120,605.90 : x
  2. Step 2: Convert to fraction form
    217,387.37/299,994.29 = 120,605.90/x
  3. Step 3: Cross multiply
    217,387.37x = 299,994.29 × 120,605.90
  4. Step 4: Simplify right side
    217,387.37x = 36,181,079,237.31
  5. Step 5: Solve for x
    x = 36,181,079,237.31/217,387.37
  6. Step 6: Final answer
    x = 166,435.98

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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.