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Finding the Fourth Proportional to 370,332.28, 555,383.82 and 133,645

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Solution

The fourth proportional to 370,332.28, 555,383.82 and 133,645 is: 200,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,332.28 : 555,383.82 = 133,645 : x
  2. Step 2: Convert to fraction form
    370,332.28/555,383.82 = 133,645/x
  3. Step 3: Cross multiply
    370,332.28x = 555,383.82 × 133,645
  4. Step 4: Simplify right side
    370,332.28x = 74,224,270,623.90
  5. Step 5: Solve for x
    x = 74,224,270,623.90/370,332.28
  6. Step 6: Final answer
    x = 200,426.14

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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.