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Finding the Fourth Proportional to 370,340.28, 555,395.82 and 133,653

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Solution

The fourth proportional to 370,340.28, 555,395.82 and 133,653 is: 200,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,340.28 : 555,395.82 = 133,653 : x
  2. Step 2: Convert to fraction form
    370,340.28/555,395.82 = 133,653/x
  3. Step 3: Cross multiply
    370,340.28x = 555,395.82 × 133,653
  4. Step 4: Simplify right side
    370,340.28x = 74,230,317,530.46
  5. Step 5: Solve for x
    x = 74,230,317,530.46/370,340.28
  6. Step 6: Final answer
    x = 200,438.14

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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.