Home / 320,867.50-442,913.80-186,731.50

Finding the Fourth Proportional to 320,867.50, 442,913.80 and 186,731.50

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Solution

The fourth proportional to 320,867.50, 442,913.80 and 186,731.50 is: 257,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,867.50 : 442,913.80 = 186,731.50 : x
  2. Step 2: Convert to fraction form
    320,867.50/442,913.80 = 186,731.50/x
  3. Step 3: Cross multiply
    320,867.50x = 442,913.80 × 186,731.50
  4. Step 4: Simplify right side
    320,867.50x = 82,705,958,244.70
  5. Step 5: Solve for x
    x = 82,705,958,244.70/320,867.50
  6. Step 6: Final answer
    x = 257,757.36

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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.