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Finding the Fourth Proportional to 218,518.56, 301,461.84 and 125,334.72

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Solution

The fourth proportional to 218,518.56, 301,461.84 and 125,334.72 is: 172,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,518.56 : 301,461.84 = 125,334.72 : x
  2. Step 2: Convert to fraction form
    218,518.56/301,461.84 = 125,334.72/x
  3. Step 3: Cross multiply
    218,518.56x = 301,461.84 × 125,334.72
  4. Step 4: Simplify right side
    218,518.56x = 37,783,635,307.08
  5. Step 5: Solve for x
    x = 37,783,635,307.08/218,518.56
  6. Step 6: Final answer
    x = 172,908.13

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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.