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Finding the Fourth Proportional to 251,029.88, 346,334.64 and 160,438.88

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Solution

The fourth proportional to 251,029.88, 346,334.64 and 160,438.88 is: 221,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,029.88 : 346,334.64 = 160,438.88 : x
  2. Step 2: Convert to fraction form
    251,029.88/346,334.64 = 160,438.88/x
  3. Step 3: Cross multiply
    251,029.88x = 346,334.64 × 160,438.88
  4. Step 4: Simplify right side
    251,029.88x = 55,565,540,015.13
  5. Step 5: Solve for x
    x = 55,565,540,015.13/251,029.88
  6. Step 6: Final answer
    x = 221,350.30

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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.