Home / 381,826.72-526,890.05-220,692.21

Finding the Fourth Proportional to 381,826.72, 526,890.05 and 220,692.21

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Solution

The fourth proportional to 381,826.72, 526,890.05 and 220,692.21 is: 304,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,826.72 : 526,890.05 = 220,692.21 : x
  2. Step 2: Convert to fraction form
    381,826.72/526,890.05 = 220,692.21/x
  3. Step 3: Cross multiply
    381,826.72x = 526,890.05 × 220,692.21
  4. Step 4: Simplify right side
    381,826.72x = 116,280,525,823.60
  5. Step 5: Solve for x
    x = 116,280,525,823.60/381,826.72
  6. Step 6: Final answer
    x = 304,537.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.