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Finding the Fourth Proportional to 219,707.32, 329,560.98 and 208,488.01

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Solution

The fourth proportional to 219,707.32, 329,560.98 and 208,488.01 is: 312,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,707.32 : 329,560.98 = 208,488.01 : x
  2. Step 2: Convert to fraction form
    219,707.32/329,560.98 = 208,488.01/x
  3. Step 3: Cross multiply
    219,707.32x = 329,560.98 × 208,488.01
  4. Step 4: Simplify right side
    219,707.32x = 68,709,511,906.04
  5. Step 5: Solve for x
    x = 68,709,511,906.04/219,707.32
  6. Step 6: Final answer
    x = 312,732.01

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1.5x scale

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.