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Finding the Fourth Proportional to 286,585.58, 395,071.28 and 200,276.60

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Solution

The fourth proportional to 286,585.58, 395,071.28 and 200,276.60 is: 276,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,585.58 : 395,071.28 = 200,276.60 : x
  2. Step 2: Convert to fraction form
    286,585.58/395,071.28 = 200,276.60/x
  3. Step 3: Cross multiply
    286,585.58x = 395,071.28 × 200,276.60
  4. Step 4: Simplify right side
    286,585.58x = 79,123,532,229.06
  5. Step 5: Solve for x
    x = 79,123,532,229.06/286,585.58
  6. Step 6: Final answer
    x = 276,090.42

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1.5x scale

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.