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Finding the Fourth Proportional to 208,250.64, 287,171.08 and 178,135.64

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Solution

The fourth proportional to 208,250.64, 287,171.08 and 178,135.64 is: 245,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,250.64 : 287,171.08 = 178,135.64 : x
  2. Step 2: Convert to fraction form
    208,250.64/287,171.08 = 178,135.64/x
  3. Step 3: Cross multiply
    208,250.64x = 287,171.08 × 178,135.64
  4. Step 4: Simplify right side
    208,250.64x = 51,155,404,125.29
  5. Step 5: Solve for x
    x = 51,155,404,125.29/208,250.64
  6. Step 6: Final answer
    x = 245,643.44

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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.