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Finding the Fourth Proportional to 202,611.20, 304,166.40 and 127,731.20

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Solution

The fourth proportional to 202,611.20, 304,166.40 and 127,731.20 is: 191,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,611.20 : 304,166.40 = 127,731.20 : x
  2. Step 2: Convert to fraction form
    202,611.20/304,166.40 = 127,731.20/x
  3. Step 3: Cross multiply
    202,611.20x = 304,166.40 × 127,731.20
  4. Step 4: Simplify right side
    202,611.20x = 38,851,539,271.68
  5. Step 5: Solve for x
    x = 38,851,539,271.68/202,611.20
  6. Step 6: Final answer
    x = 191,754.15

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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.