Home / 200,731.20-301,096.80-121,869.60

Finding the Fourth Proportional to 200,731.20, 301,096.80 and 121,869.60

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Solution

The fourth proportional to 200,731.20, 301,096.80 and 121,869.60 is: 182,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,731.20 : 301,096.80 = 121,869.60 : x
  2. Step 2: Convert to fraction form
    200,731.20/301,096.80 = 121,869.60/x
  3. Step 3: Cross multiply
    200,731.20x = 301,096.80 × 121,869.60
  4. Step 4: Simplify right side
    200,731.20x = 36,694,546,577.28
  5. Step 5: Solve for x
    x = 36,694,546,577.28/200,731.20
  6. Step 6: Final answer
    x = 182,804.40

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1.5x scale

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.