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Finding the Fourth Proportional to 239,187.87, 358,840.71 and 70,707.42

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Solution

The fourth proportional to 239,187.87, 358,840.71 and 70,707.42 is: 106,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,187.87 : 358,840.71 = 70,707.42 : x
  2. Step 2: Convert to fraction form
    239,187.87/358,840.71 = 70,707.42/x
  3. Step 3: Cross multiply
    239,187.87x = 358,840.71 × 70,707.42
  4. Step 4: Simplify right side
    239,187.87x = 25,372,700,795.07
  5. Step 5: Solve for x
    x = 25,372,700,795.07/239,187.87
  6. Step 6: Final answer
    x = 106,078.54

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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.