Home / 219,780.30-330,326.55-190,911.90

Finding the Fourth Proportional to 219,780.30, 330,326.55 and 190,911.90

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Solution

The fourth proportional to 219,780.30, 330,326.55 and 190,911.90 is: 286,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780.30 : 330,326.55 = 190,911.90 : x
  2. Step 2: Convert to fraction form
    219,780.30/330,326.55 = 190,911.90/x
  3. Step 3: Cross multiply
    219,780.30x = 330,326.55 × 190,911.90
  4. Step 4: Simplify right side
    219,780.30x = 63,063,269,280.95
  5. Step 5: Solve for x
    x = 63,063,269,280.95/219,780.30
  6. Step 6: Final answer
    x = 286,937.77

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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.