Home / 252,005.10-378,007.65-219,200.10

Finding the Fourth Proportional to 252,005.10, 378,007.65 and 219,200.10

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Solution

The fourth proportional to 252,005.10, 378,007.65 and 219,200.10 is: 328,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,005.10 : 378,007.65 = 219,200.10 : x
  2. Step 2: Convert to fraction form
    252,005.10/378,007.65 = 219,200.10/x
  3. Step 3: Cross multiply
    252,005.10x = 378,007.65 × 219,200.10
  4. Step 4: Simplify right side
    252,005.10x = 82,859,314,680.77
  5. Step 5: Solve for x
    x = 82,859,314,680.77/252,005.10
  6. Step 6: Final answer
    x = 328,800.15

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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.