Home / 402,822.08-555,883.38-221,534.02

Finding the Fourth Proportional to 402,822.08, 555,883.38 and 221,534.02

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Solution

The fourth proportional to 402,822.08, 555,883.38 and 221,534.02 is: 305,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,822.08 : 555,883.38 = 221,534.02 : x
  2. Step 2: Convert to fraction form
    402,822.08/555,883.38 = 221,534.02/x
  3. Step 3: Cross multiply
    402,822.08x = 555,883.38 × 221,534.02
  4. Step 4: Simplify right side
    402,822.08x = 123,147,077,043.17
  5. Step 5: Solve for x
    x = 123,147,077,043.17/402,822.08
  6. Step 6: Final answer
    x = 305,710.85

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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.