Home / 347,867.34-520,865.67-220,819.83

Finding the Fourth Proportional to 347,867.34, 520,865.67 and 220,819.83

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Solution

The fourth proportional to 347,867.34, 520,865.67 and 220,819.83 is: 330,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,867.34 : 520,865.67 = 220,819.83 : x
  2. Step 2: Convert to fraction form
    347,867.34/520,865.67 = 220,819.83/x
  3. Step 3: Cross multiply
    347,867.34x = 520,865.67 × 220,819.83
  4. Step 4: Simplify right side
    347,867.34x = 115,017,468,702.24
  5. Step 5: Solve for x
    x = 115,017,468,702.24/347,867.34
  6. Step 6: Final answer
    x = 330,636.01

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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.