Home / 403,111.65-556,292.97-221,835.34

Finding the Fourth Proportional to 403,111.65, 556,292.97 and 221,835.34

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Solution

The fourth proportional to 403,111.65, 556,292.97 and 221,835.34 is: 306,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,111.65 : 556,292.97 = 221,835.34 : x
  2. Step 2: Convert to fraction form
    403,111.65/556,292.97 = 221,835.34/x
  3. Step 3: Cross multiply
    403,111.65x = 556,292.97 × 221,835.34
  4. Step 4: Simplify right side
    403,111.65x = 123,405,438,748.83
  5. Step 5: Solve for x
    x = 123,405,438,748.83/403,111.65
  6. Step 6: Final answer
    x = 306,132.16

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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.