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Finding the Fourth Proportional to 250,028.64, 345,030.90 and 142,633.44

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Solution

The fourth proportional to 250,028.64, 345,030.90 and 142,633.44 is: 196,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,028.64 : 345,030.90 = 142,633.44 : x
  2. Step 2: Convert to fraction form
    250,028.64/345,030.90 = 142,633.44/x
  3. Step 3: Cross multiply
    250,028.64x = 345,030.90 × 142,633.44
  4. Step 4: Simplify right side
    250,028.64x = 49,212,944,173.30
  5. Step 5: Solve for x
    x = 49,212,944,173.30/250,028.64
  6. Step 6: Final answer
    x = 196,829.23

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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.