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Finding the Fourth Proportional to 218,150.28, 301,041.90 and 122,656.86

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Solution

The fourth proportional to 218,150.28, 301,041.90 and 122,656.86 is: 169,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,150.28 : 301,041.90 = 122,656.86 : x
  2. Step 2: Convert to fraction form
    218,150.28/301,041.90 = 122,656.86/x
  3. Step 3: Cross multiply
    218,150.28x = 301,041.90 × 122,656.86
  4. Step 4: Simplify right side
    218,150.28x = 36,924,854,182.43
  5. Step 5: Solve for x
    x = 36,924,854,182.43/218,150.28
  6. Step 6: Final answer
    x = 169,263.38

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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.