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Finding the Fourth Proportional to 218,298.96, 301,252.11 and 122,805.72

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Solution

The fourth proportional to 218,298.96, 301,252.11 and 122,805.72 is: 169,471.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,298.96 : 301,252.11 = 122,805.72 : x
  2. Step 2: Convert to fraction form
    218,298.96/301,252.11 = 122,805.72/x
  3. Step 3: Cross multiply
    218,298.96x = 301,252.11 × 122,805.72
  4. Step 4: Simplify right side
    218,298.96x = 36,995,482,270.07
  5. Step 5: Solve for x
    x = 36,995,482,270.07/218,298.96
  6. Step 6: Final answer
    x = 169,471.64

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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.