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Finding the Fourth Proportional to 238,289.40, 356,889.72 and 113,717.88

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Solution

The fourth proportional to 238,289.40, 356,889.72 and 113,717.88 is: 170,317.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,289.40 : 356,889.72 = 113,717.88 : x
  2. Step 2: Convert to fraction form
    238,289.40/356,889.72 = 113,717.88/x
  3. Step 3: Cross multiply
    238,289.40x = 356,889.72 × 113,717.88
  4. Step 4: Simplify right side
    238,289.40x = 40,584,742,352.19
  5. Step 5: Solve for x
    x = 40,584,742,352.19/238,289.40
  6. Step 6: Final answer
    x = 170,317.03

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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.