Home / 402,906.02-555,998.58-221,617.92

Finding the Fourth Proportional to 402,906.02, 555,998.58 and 221,617.92

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Solution

The fourth proportional to 402,906.02, 555,998.58 and 221,617.92 is: 305,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,906.02 : 555,998.58 = 221,617.92 : x
  2. Step 2: Convert to fraction form
    402,906.02/555,998.58 = 221,617.92/x
  3. Step 3: Cross multiply
    402,906.02x = 555,998.58 × 221,617.92
  4. Step 4: Simplify right side
    402,906.02x = 123,219,248,822.55
  5. Step 5: Solve for x
    x = 123,219,248,822.55/402,906.02
  6. Step 6: Final answer
    x = 305,826.28

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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.