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Finding the Fourth Proportional to 203,655.84, 305,487.22 and 70,540.04

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Solution

The fourth proportional to 203,655.84, 305,487.22 and 70,540.04 is: 105,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,655.84 : 305,487.22 = 70,540.04 : x
  2. Step 2: Convert to fraction form
    203,655.84/305,487.22 = 70,540.04/x
  3. Step 3: Cross multiply
    203,655.84x = 305,487.22 × 70,540.04
  4. Step 4: Simplify right side
    203,655.84x = 21,549,080,718.29
  5. Step 5: Solve for x
    x = 21,549,080,718.29/203,655.84
  6. Step 6: Final answer
    x = 105,811.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.