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Finding the Fourth Proportional to 217,374.93, 299,994.78 and 120,588.33

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Solution

The fourth proportional to 217,374.93, 299,994.78 and 120,588.33 is: 166,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,374.93 : 299,994.78 = 120,588.33 : x
  2. Step 2: Convert to fraction form
    217,374.93/299,994.78 = 120,588.33/x
  3. Step 3: Cross multiply
    217,374.93x = 299,994.78 × 120,588.33
  4. Step 4: Simplify right side
    217,374.93x = 36,175,869,528.92
  5. Step 5: Solve for x
    x = 36,175,869,528.92/217,374.93
  6. Step 6: Final answer
    x = 166,421.54

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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.