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Finding the Fourth Proportional to 370,002.39, 555,072.78 and 117,215

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Solution

The fourth proportional to 370,002.39, 555,072.78 and 117,215 is: 175,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,002.39 : 555,072.78 = 117,215 : x
  2. Step 2: Convert to fraction form
    370,002.39/555,072.78 = 117,215/x
  3. Step 3: Cross multiply
    370,002.39x = 555,072.78 × 117,215
  4. Step 4: Simplify right side
    370,002.39x = 65,062,855,907.70
  5. Step 5: Solve for x
    x = 65,062,855,907.70/370,002.39
  6. Step 6: Final answer
    x = 175,844.42

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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.