Home / 386,889.13-580,068.89-196,982

Finding the Fourth Proportional to 386,889.13, 580,068.89 and 196,982

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Solution

The fourth proportional to 386,889.13, 580,068.89 and 196,982 is: 295,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,889.13 : 580,068.89 = 196,982 : x
  2. Step 2: Convert to fraction form
    386,889.13/580,068.89 = 196,982/x
  3. Step 3: Cross multiply
    386,889.13x = 580,068.89 × 196,982
  4. Step 4: Simplify right side
    386,889.13x = 114,263,130,089.98
  5. Step 5: Solve for x
    x = 114,263,130,089.98/386,889.13
  6. Step 6: Final answer
    x = 295,338.18

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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.