Home / 403,265.82-556,502.60-221,973.86

Finding the Fourth Proportional to 403,265.82, 556,502.60 and 221,973.86

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Solution

The fourth proportional to 403,265.82, 556,502.60 and 221,973.86 is: 306,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,265.82 : 556,502.60 = 221,973.86 : x
  2. Step 2: Convert to fraction form
    403,265.82/556,502.60 = 221,973.86/x
  3. Step 3: Cross multiply
    403,265.82x = 556,502.60 × 221,973.86
  4. Step 4: Simplify right side
    403,265.82x = 123,529,030,222.04
  5. Step 5: Solve for x
    x = 123,529,030,222.04/403,265.82
  6. Step 6: Final answer
    x = 306,321.60

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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.