Home / 402,979.14-556,112.37-221,702.82

Finding the Fourth Proportional to 402,979.14, 556,112.37 and 221,702.82

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Solution

The fourth proportional to 402,979.14, 556,112.37 and 221,702.82 is: 305,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,979.14 : 556,112.37 = 221,702.82 : x
  2. Step 2: Convert to fraction form
    402,979.14/556,112.37 = 221,702.82/x
  3. Step 3: Cross multiply
    402,979.14x = 556,112.37 × 221,702.82
  4. Step 4: Simplify right side
    402,979.14x = 123,291,680,665.88
  5. Step 5: Solve for x
    x = 123,291,680,665.88/402,979.14
  6. Step 6: Final answer
    x = 305,950.53

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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.