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Finding the Fourth Proportional to 215,869.71, 297,900.48 and 119,071.39

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Solution

The fourth proportional to 215,869.71, 297,900.48 and 119,071.39 is: 164,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,869.71 : 297,900.48 = 119,071.39 : x
  2. Step 2: Convert to fraction form
    215,869.71/297,900.48 = 119,071.39/x
  3. Step 3: Cross multiply
    215,869.71x = 297,900.48 × 119,071.39
  4. Step 4: Simplify right side
    215,869.71x = 35,471,424,235.27
  5. Step 5: Solve for x
    x = 35,471,424,235.27/215,869.71
  6. Step 6: Final answer
    x = 164,318.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.