Home / 219,621.40-329,432.10-144,777.40

Finding the Fourth Proportional to 219,621.40, 329,432.10 and 144,777.40

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Solution

The fourth proportional to 219,621.40, 329,432.10 and 144,777.40 is: 217,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,621.40 : 329,432.10 = 144,777.40 : x
  2. Step 2: Convert to fraction form
    219,621.40/329,432.10 = 144,777.40/x
  3. Step 3: Cross multiply
    219,621.40x = 329,432.10 × 144,777.40
  4. Step 4: Simplify right side
    219,621.40x = 47,694,322,914.54
  5. Step 5: Solve for x
    x = 47,694,322,914.54/219,621.40
  6. Step 6: Final answer
    x = 217,166.10

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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.