Home / 221,191.39-305,266.62-130,576.69

Finding the Fourth Proportional to 221,191.39, 305,266.62 and 130,576.69

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Solution

The fourth proportional to 221,191.39, 305,266.62 and 130,576.69 is: 180,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,191.39 : 305,266.62 = 130,576.69 : x
  2. Step 2: Convert to fraction form
    221,191.39/305,266.62 = 130,576.69/x
  3. Step 3: Cross multiply
    221,191.39x = 305,266.62 × 130,576.69
  4. Step 4: Simplify right side
    221,191.39x = 39,860,704,807.09
  5. Step 5: Solve for x
    x = 39,860,704,807.09/221,191.39
  6. Step 6: Final answer
    x = 180,209.12

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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.