Home / 429,248.18-643,872.27-163,008.73

Finding the Fourth Proportional to 429,248.18, 643,872.27 and 163,008.73

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Solution

The fourth proportional to 429,248.18, 643,872.27 and 163,008.73 is: 244,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,248.18 : 643,872.27 = 163,008.73 : x
  2. Step 2: Convert to fraction form
    429,248.18/643,872.27 = 163,008.73/x
  3. Step 3: Cross multiply
    429,248.18x = 643,872.27 × 163,008.73
  4. Step 4: Simplify right side
    429,248.18x = 104,956,801,014.92
  5. Step 5: Solve for x
    x = 104,956,801,014.92/429,248.18
  6. Step 6: Final answer
    x = 244,513.10

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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.