Home / 215,342.34-323,539.11-203,406.18

Finding the Fourth Proportional to 215,342.34, 323,539.11 and 203,406.18

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Solution

The fourth proportional to 215,342.34, 323,539.11 and 203,406.18 is: 305,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,342.34 : 323,539.11 = 203,406.18 : x
  2. Step 2: Convert to fraction form
    215,342.34/323,539.11 = 203,406.18/x
  3. Step 3: Cross multiply
    215,342.34x = 323,539.11 × 203,406.18
  4. Step 4: Simplify right side
    215,342.34x = 65,809,854,445.70
  5. Step 5: Solve for x
    x = 65,809,854,445.70/215,342.34
  6. Step 6: Final answer
    x = 305,605.74

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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.