Home / 402,568.54-555,533.30-221,280.82

Finding the Fourth Proportional to 402,568.54, 555,533.30 and 221,280.82

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Solution

The fourth proportional to 402,568.54, 555,533.30 and 221,280.82 is: 305,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,568.54 : 555,533.30 = 221,280.82 : x
  2. Step 2: Convert to fraction form
    402,568.54/555,533.30 = 221,280.82/x
  3. Step 3: Cross multiply
    402,568.54x = 555,533.30 × 221,280.82
  4. Step 4: Simplify right side
    402,568.54x = 122,928,864,161.31
  5. Step 5: Solve for x
    x = 122,928,864,161.31/402,568.54
  6. Step 6: Final answer
    x = 305,361.33

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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.