Home / 403,106.30-556,285.57-221,829.96

Finding the Fourth Proportional to 403,106.30, 556,285.57 and 221,829.96

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Solution

The fourth proportional to 403,106.30, 556,285.57 and 221,829.96 is: 306,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,106.30 : 556,285.57 = 221,829.96 : x
  2. Step 2: Convert to fraction form
    403,106.30/556,285.57 = 221,829.96/x
  3. Step 3: Cross multiply
    403,106.30x = 556,285.57 × 221,829.96
  4. Step 4: Simplify right side
    403,106.30x = 123,400,805,741.68
  5. Step 5: Solve for x
    x = 123,400,805,741.68/403,106.30
  6. Step 6: Final answer
    x = 306,124.73

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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.