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Finding the Fourth Proportional to 370,205.76, 555,193.72 and 133,517.69

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Solution

The fourth proportional to 370,205.76, 555,193.72 and 133,517.69 is: 200,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,205.76 : 555,193.72 = 133,517.69 : x
  2. Step 2: Convert to fraction form
    370,205.76/555,193.72 = 133,517.69/x
  3. Step 3: Cross multiply
    370,205.76x = 555,193.72 × 133,517.69
  4. Step 4: Simplify right side
    370,205.76x = 74,128,182,996.91
  5. Step 5: Solve for x
    x = 74,128,182,996.91/370,205.76
  6. Step 6: Final answer
    x = 200,235.09

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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.