Home / 403,265.57-556,502.25-221,973.62

Finding the Fourth Proportional to 403,265.57, 556,502.25 and 221,973.62

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Solution

The fourth proportional to 403,265.57, 556,502.25 and 221,973.62 is: 306,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,265.57 : 556,502.25 = 221,973.62 : x
  2. Step 2: Convert to fraction form
    403,265.57/556,502.25 = 221,973.62/x
  3. Step 3: Cross multiply
    403,265.57x = 556,502.25 × 221,973.62
  4. Step 4: Simplify right side
    403,265.57x = 123,528,818,970.65
  5. Step 5: Solve for x
    x = 123,528,818,970.65/403,265.57
  6. Step 6: Final answer
    x = 306,321.26

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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.