Home / 402,907.14-556,022.34-221,623.74

Finding the Fourth Proportional to 402,907.14, 556,022.34 and 221,623.74

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Solution

The fourth proportional to 402,907.14, 556,022.34 and 221,623.74 is: 305,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,907.14 : 556,022.34 = 221,623.74 : x
  2. Step 2: Convert to fraction form
    402,907.14/556,022.34 = 221,623.74/x
  3. Step 3: Cross multiply
    402,907.14x = 556,022.34 × 221,623.74
  4. Step 4: Simplify right side
    402,907.14x = 123,227,750,514.35
  5. Step 5: Solve for x
    x = 123,227,750,514.35/402,907.14
  6. Step 6: Final answer
    x = 305,846.53

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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.