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Finding the Fourth Proportional to 239,419.66, 358,242.39 and 191,890.59

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Solution

The fourth proportional to 239,419.66, 358,242.39 and 191,890.59 is: 287,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,419.66 : 358,242.39 = 191,890.59 : x
  2. Step 2: Convert to fraction form
    239,419.66/358,242.39 = 191,890.59/x
  3. Step 3: Cross multiply
    239,419.66x = 358,242.39 × 191,890.59
  4. Step 4: Simplify right side
    239,419.66x = 68,743,343,580.11
  5. Step 5: Solve for x
    x = 68,743,343,580.11/239,419.66
  6. Step 6: Final answer
    x = 287,124.89

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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.