Home / 219,870.32-329,438.12-211,679.60

Finding the Fourth Proportional to 219,870.32, 329,438.12 and 211,679.60

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Solution

The fourth proportional to 219,870.32, 329,438.12 and 211,679.60 is: 317,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,870.32 : 329,438.12 = 211,679.60 : x
  2. Step 2: Convert to fraction form
    219,870.32/329,438.12 = 211,679.60/x
  3. Step 3: Cross multiply
    219,870.32x = 329,438.12 × 211,679.60
  4. Step 4: Simplify right side
    219,870.32x = 69,735,326,760.76
  5. Step 5: Solve for x
    x = 69,735,326,760.76/219,870.32
  6. Step 6: Final answer
    x = 317,165.72

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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.