Home / 402,824.58-555,886.83-221,536.52

Finding the Fourth Proportional to 402,824.58, 555,886.83 and 221,536.52

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Solution

The fourth proportional to 402,824.58, 555,886.83 and 221,536.52 is: 305,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,824.58 : 555,886.83 = 221,536.52 : x
  2. Step 2: Convert to fraction form
    402,824.58/555,886.83 = 221,536.52/x
  3. Step 3: Cross multiply
    402,824.58x = 555,886.83 × 221,536.52
  4. Step 4: Simplify right side
    402,824.58x = 123,149,233,832.03
  5. Step 5: Solve for x
    x = 123,149,233,832.03/402,824.58
  6. Step 6: Final answer
    x = 305,714.30

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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.