Home / 198,218.34-297,329.94-57,979.80

Finding the Fourth Proportional to 198,218.34, 297,329.94 and 57,979.80

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Solution

The fourth proportional to 198,218.34, 297,329.94 and 57,979.80 is: 86,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,218.34 : 297,329.94 = 57,979.80 : x
  2. Step 2: Convert to fraction form
    198,218.34/297,329.94 = 57,979.80/x
  3. Step 3: Cross multiply
    198,218.34x = 297,329.94 × 57,979.80
  4. Step 4: Simplify right side
    198,218.34x = 17,239,130,455.21
  5. Step 5: Solve for x
    x = 17,239,130,455.21/198,218.34
  6. Step 6: Final answer
    x = 86,970.41

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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.