Home / 213,698.18-319,731.17-186,845.87

Finding the Fourth Proportional to 213,698.18, 319,731.17 and 186,845.87

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Solution

The fourth proportional to 213,698.18, 319,731.17 and 186,845.87 is: 279,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,698.18 : 319,731.17 = 186,845.87 : x
  2. Step 2: Convert to fraction form
    213,698.18/319,731.17 = 186,845.87/x
  3. Step 3: Cross multiply
    213,698.18x = 319,731.17 × 186,845.87
  4. Step 4: Simplify right side
    213,698.18x = 59,740,448,489.87
  5. Step 5: Solve for x
    x = 59,740,448,489.87/213,698.18
  6. Step 6: Final answer
    x = 279,555.25

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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.