Home / 282,748.76-390,194.08-161,891.90

Finding the Fourth Proportional to 282,748.76, 390,194.08 and 161,891.90

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Solution

The fourth proportional to 282,748.76, 390,194.08 and 161,891.90 is: 223,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,748.76 : 390,194.08 = 161,891.90 : x
  2. Step 2: Convert to fraction form
    282,748.76/390,194.08 = 161,891.90/x
  3. Step 3: Cross multiply
    282,748.76x = 390,194.08 × 161,891.90
  4. Step 4: Simplify right side
    282,748.76x = 63,169,260,979.95
  5. Step 5: Solve for x
    x = 63,169,260,979.95/282,748.76
  6. Step 6: Final answer
    x = 223,411.28

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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.