Home / 305,523.90-421,828.56-233,775.72

Finding the Fourth Proportional to 305,523.90, 421,828.56 and 233,775.72

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Solution

The fourth proportional to 305,523.90, 421,828.56 and 233,775.72 is: 322,767.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,523.90 : 421,828.56 = 233,775.72 : x
  2. Step 2: Convert to fraction form
    305,523.90/421,828.56 = 233,775.72/x
  3. Step 3: Cross multiply
    305,523.90x = 421,828.56 × 233,775.72
  4. Step 4: Simplify right side
    305,523.90x = 98,613,275,330.56
  5. Step 5: Solve for x
    x = 98,613,275,330.56/305,523.90
  6. Step 6: Final answer
    x = 322,767.79

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1.5x scale

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.