Home / 402,744.24-555,790.80-221,457.30

Finding the Fourth Proportional to 402,744.24, 555,790.80 and 221,457.30

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Solution

The fourth proportional to 402,744.24, 555,790.80 and 221,457.30 is: 305,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,744.24 : 555,790.80 = 221,457.30 : x
  2. Step 2: Convert to fraction form
    402,744.24/555,790.80 = 221,457.30/x
  3. Step 3: Cross multiply
    402,744.24x = 555,790.80 × 221,457.30
  4. Step 4: Simplify right side
    402,744.24x = 123,083,929,932.84
  5. Step 5: Solve for x
    x = 123,083,929,932.84/402,744.24
  6. Step 6: Final answer
    x = 305,613.14

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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.