Home / 379,826.60-569,826.30-221,973.80

Finding the Fourth Proportional to 379,826.60, 569,826.30 and 221,973.80

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Solution

The fourth proportional to 379,826.60, 569,826.30 and 221,973.80 is: 333,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,826.60 : 569,826.30 = 221,973.80 : x
  2. Step 2: Convert to fraction form
    379,826.60/569,826.30 = 221,973.80/x
  3. Step 3: Cross multiply
    379,826.60x = 569,826.30 × 221,973.80
  4. Step 4: Simplify right side
    379,826.60x = 126,486,509,150.94
  5. Step 5: Solve for x
    x = 126,486,509,150.94/379,826.60
  6. Step 6: Final answer
    x = 333,011.19

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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.