Home / 403,053.96-556,214.40-221,761.92

Finding the Fourth Proportional to 403,053.96, 556,214.40 and 221,761.92

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Solution

The fourth proportional to 403,053.96, 556,214.40 and 221,761.92 is: 306,031.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,053.96 : 556,214.40 = 221,761.92 : x
  2. Step 2: Convert to fraction form
    403,053.96/556,214.40 = 221,761.92/x
  3. Step 3: Cross multiply
    403,053.96x = 556,214.40 × 221,761.92
  4. Step 4: Simplify right side
    403,053.96x = 123,347,173,275.65
  5. Step 5: Solve for x
    x = 123,347,173,275.65/403,053.96
  6. Step 6: Final answer
    x = 306,031.41

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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.