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Finding the Fourth Proportional to 202,675.20, 279,878.40 and 135,801.60

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Solution

The fourth proportional to 202,675.20, 279,878.40 and 135,801.60 is: 187,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,675.20 : 279,878.40 = 135,801.60 : x
  2. Step 2: Convert to fraction form
    202,675.20/279,878.40 = 135,801.60/x
  3. Step 3: Cross multiply
    202,675.20x = 279,878.40 × 135,801.60
  4. Step 4: Simplify right side
    202,675.20x = 38,007,934,525.44
  5. Step 5: Solve for x
    x = 38,007,934,525.44/202,675.20
  6. Step 6: Final answer
    x = 187,531.25

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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.