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Finding the Fourth Proportional to 217,283.97, 299,852.55 and 120,494.64

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Solution

The fourth proportional to 217,283.97, 299,852.55 and 120,494.64 is: 166,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,283.97 : 299,852.55 = 120,494.64 : x
  2. Step 2: Convert to fraction form
    217,283.97/299,852.55 = 120,494.64/x
  3. Step 3: Cross multiply
    217,283.97x = 299,852.55 × 120,494.64
  4. Step 4: Simplify right side
    217,283.97x = 36,130,626,189.78
  5. Step 5: Solve for x
    x = 36,130,626,189.78/217,283.97
  6. Step 6: Final answer
    x = 166,282.98

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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.