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Finding the Fourth Proportional to 218,118.96, 301,014.84 and 122,655.60

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Solution

The fourth proportional to 218,118.96, 301,014.84 and 122,655.60 is: 169,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,118.96 : 301,014.84 = 122,655.60 : x
  2. Step 2: Convert to fraction form
    218,118.96/301,014.84 = 122,655.60/x
  3. Step 3: Cross multiply
    218,118.96x = 301,014.84 × 122,655.60
  4. Step 4: Simplify right side
    218,118.96x = 36,921,155,809.10
  5. Step 5: Solve for x
    x = 36,921,155,809.10/218,118.96
  6. Step 6: Final answer
    x = 169,270.73

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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.