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Finding the Fourth Proportional to 217,803.66, 300,559.08 and 121,014.33

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Solution

The fourth proportional to 217,803.66, 300,559.08 and 121,014.33 is: 166,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,803.66 : 300,559.08 = 121,014.33 : x
  2. Step 2: Convert to fraction form
    217,803.66/300,559.08 = 121,014.33/x
  3. Step 3: Cross multiply
    217,803.66x = 300,559.08 × 121,014.33
  4. Step 4: Simplify right side
    217,803.66x = 36,371,955,691.62
  5. Step 5: Solve for x
    x = 36,371,955,691.62/217,803.66
  6. Step 6: Final answer
    x = 166,994.24

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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.