Home / 238,740.11-358,034.11-78,786.27

Finding the Fourth Proportional to 238,740.11, 358,034.11 and 78,786.27

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Solution

The fourth proportional to 238,740.11, 358,034.11 and 78,786.27 is: 118,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,740.11 : 358,034.11 = 78,786.27 : x
  2. Step 2: Convert to fraction form
    238,740.11/358,034.11 = 78,786.27/x
  3. Step 3: Cross multiply
    238,740.11x = 358,034.11 × 78,786.27
  4. Step 4: Simplify right side
    238,740.11x = 28,208,171,862.70
  5. Step 5: Solve for x
    x = 28,208,171,862.70/238,740.11
  6. Step 6: Final answer
    x = 118,154.31

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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.