Home / 429,895.37-643,956.51-251,862.23

Finding the Fourth Proportional to 429,895.37, 643,956.51 and 251,862.23

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Solution

The fourth proportional to 429,895.37, 643,956.51 and 251,862.23 is: 377,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,895.37 : 643,956.51 = 251,862.23 : x
  2. Step 2: Convert to fraction form
    429,895.37/643,956.51 = 251,862.23/x
  3. Step 3: Cross multiply
    429,895.37x = 643,956.51 × 251,862.23
  4. Step 4: Simplify right side
    429,895.37x = 162,188,322,631.62
  5. Step 5: Solve for x
    x = 162,188,322,631.62/429,895.37
  6. Step 6: Final answer
    x = 377,273.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.