Home / 221,190.39-305,265.24-130,575.69

Finding the Fourth Proportional to 221,190.39, 305,265.24 and 130,575.69

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Solution

The fourth proportional to 221,190.39, 305,265.24 and 130,575.69 is: 180,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,190.39 : 305,265.24 = 130,575.69 : x
  2. Step 2: Convert to fraction form
    221,190.39/305,265.24 = 130,575.69/x
  3. Step 3: Cross multiply
    221,190.39x = 305,265.24 × 130,575.69
  4. Step 4: Simplify right side
    221,190.39x = 39,860,219,346.02
  5. Step 5: Solve for x
    x = 39,860,219,346.02/221,190.39
  6. Step 6: Final answer
    x = 180,207.74

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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.