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Finding the Fourth Proportional to 218,365.92, 301,341.36 and 122,872.56

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Solution

The fourth proportional to 218,365.92, 301,341.36 and 122,872.56 is: 169,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,365.92 : 301,341.36 = 122,872.56 : x
  2. Step 2: Convert to fraction form
    218,365.92/301,341.36 = 122,872.56/x
  3. Step 3: Cross multiply
    218,365.92x = 301,341.36 × 122,872.56
  4. Step 4: Simplify right side
    218,365.92x = 37,026,584,337.08
  5. Step 5: Solve for x
    x = 37,026,584,337.08/218,365.92
  6. Step 6: Final answer
    x = 169,562.10

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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.