Home / 429,247.18-643,870.77-163,007.73

Finding the Fourth Proportional to 429,247.18, 643,870.77 and 163,007.73

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Solution

The fourth proportional to 429,247.18, 643,870.77 and 163,007.73 is: 244,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,247.18 : 643,870.77 = 163,007.73 : x
  2. Step 2: Convert to fraction form
    429,247.18/643,870.77 = 163,007.73/x
  3. Step 3: Cross multiply
    429,247.18x = 643,870.77 × 163,007.73
  4. Step 4: Simplify right side
    429,247.18x = 104,955,912,631.05
  5. Step 5: Solve for x
    x = 104,955,912,631.05/429,247.18
  6. Step 6: Final answer
    x = 244,511.60

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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.