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Finding the Fourth Proportional to 235,611, 325,210.03 and 138,871.08

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Solution

The fourth proportional to 235,611, 325,210.03 and 138,871.08 is: 191,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,611 : 325,210.03 = 138,871.08 : x
  2. Step 2: Convert to fraction form
    235,611/325,210.03 = 138,871.08/x
  3. Step 3: Cross multiply
    235,611x = 325,210.03 × 138,871.08
  4. Step 4: Simplify right side
    235,611x = 45,162,268,092.93
  5. Step 5: Solve for x
    x = 45,162,268,092.93/235,611
  6. Step 6: Final answer
    x = 191,681.49

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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.