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Finding the Fourth Proportional to 188,988.42, 283,480.80 and 55,871.19

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Solution

The fourth proportional to 188,988.42, 283,480.80 and 55,871.19 is: 83,806.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,988.42 : 283,480.80 = 55,871.19 : x
  2. Step 2: Convert to fraction form
    188,988.42/283,480.80 = 55,871.19/x
  3. Step 3: Cross multiply
    188,988.42x = 283,480.80 × 55,871.19
  4. Step 4: Simplify right side
    188,988.42x = 15,838,409,638.15
  5. Step 5: Solve for x
    x = 15,838,409,638.15/188,988.42
  6. Step 6: Final answer
    x = 83,806.24

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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.