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Finding the Fourth Proportional to 239,298.36, 358,947.60 and 70,805.64

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Solution

The fourth proportional to 239,298.36, 358,947.60 and 70,805.64 is: 106,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,298.36 : 358,947.60 = 70,805.64 : x
  2. Step 2: Convert to fraction form
    239,298.36/358,947.60 = 70,805.64/x
  3. Step 3: Cross multiply
    239,298.36x = 358,947.60 × 70,805.64
  4. Step 4: Simplify right side
    239,298.36x = 25,415,514,544.46
  5. Step 5: Solve for x
    x = 25,415,514,544.46/239,298.36
  6. Step 6: Final answer
    x = 106,208.48

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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.