Home / 402,849.32-555,920.34-221,560.52

Finding the Fourth Proportional to 402,849.32, 555,920.34 and 221,560.52

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Solution

The fourth proportional to 402,849.32, 555,920.34 and 221,560.52 is: 305,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,849.32 : 555,920.34 = 221,560.52 : x
  2. Step 2: Convert to fraction form
    402,849.32/555,920.34 = 221,560.52/x
  3. Step 3: Cross multiply
    402,849.32x = 555,920.34 × 221,560.52
  4. Step 4: Simplify right side
    402,849.32x = 123,169,999,608.98
  5. Step 5: Solve for x
    x = 123,169,999,608.98/402,849.32
  6. Step 6: Final answer
    x = 305,747.07

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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.