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Finding the Fourth Proportional to 216,692.52, 299,033.96 and 121,199.16

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Solution

The fourth proportional to 216,692.52, 299,033.96 and 121,199.16 is: 167,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,692.52 : 299,033.96 = 121,199.16 : x
  2. Step 2: Convert to fraction form
    216,692.52/299,033.96 = 121,199.16/x
  3. Step 3: Cross multiply
    216,692.52x = 299,033.96 × 121,199.16
  4. Step 4: Simplify right side
    216,692.52x = 36,242,664,763.47
  5. Step 5: Solve for x
    x = 36,242,664,763.47/216,692.52
  6. Step 6: Final answer
    x = 167,253.88

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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.