Home / 429,067.41-643,580.21-159,248.07

Finding the Fourth Proportional to 429,067.41, 643,580.21 and 159,248.07

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Solution

The fourth proportional to 429,067.41, 643,580.21 and 159,248.07 is: 238,864.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,067.41 : 643,580.21 = 159,248.07 : x
  2. Step 2: Convert to fraction form
    429,067.41/643,580.21 = 159,248.07/x
  3. Step 3: Cross multiply
    429,067.41x = 643,580.21 × 159,248.07
  4. Step 4: Simplify right side
    429,067.41x = 102,488,905,536.45
  5. Step 5: Solve for x
    x = 102,488,905,536.45/429,067.41
  6. Step 6: Final answer
    x = 238,864.34

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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.