Home / 238,869.81-358,351.65-78,939.27

Finding the Fourth Proportional to 238,869.81, 358,351.65 and 78,939.27

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Solution

The fourth proportional to 238,869.81, 358,351.65 and 78,939.27 is: 118,424.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,869.81 : 358,351.65 = 78,939.27 : x
  2. Step 2: Convert to fraction form
    238,869.81/358,351.65 = 78,939.27/x
  3. Step 3: Cross multiply
    238,869.81x = 358,351.65 × 78,939.27
  4. Step 4: Simplify right side
    238,869.81x = 28,288,017,654.30
  5. Step 5: Solve for x
    x = 28,288,017,654.30/238,869.81
  6. Step 6: Final answer
    x = 118,424.42

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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.