Home / 320,867.52-442,913.98-186,731.52

Finding the Fourth Proportional to 320,867.52, 442,913.98 and 186,731.52

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Solution

The fourth proportional to 320,867.52, 442,913.98 and 186,731.52 is: 257,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,867.52 : 442,913.98 = 186,731.52 : x
  2. Step 2: Convert to fraction form
    320,867.52/442,913.98 = 186,731.52/x
  3. Step 3: Cross multiply
    320,867.52x = 442,913.98 × 186,731.52
  4. Step 4: Simplify right side
    320,867.52x = 82,706,000,714.65
  5. Step 5: Solve for x
    x = 82,706,000,714.65/320,867.52
  6. Step 6: Final answer
    x = 257,757.47

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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.