Home / 305,150.43-421,085.50-167,307.28

Finding the Fourth Proportional to 305,150.43, 421,085.50 and 167,307.28

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Solution

The fourth proportional to 305,150.43, 421,085.50 and 167,307.28 is: 230,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,150.43 : 421,085.50 = 167,307.28 : x
  2. Step 2: Convert to fraction form
    305,150.43/421,085.50 = 167,307.28/x
  3. Step 3: Cross multiply
    305,150.43x = 421,085.50 × 167,307.28
  4. Step 4: Simplify right side
    305,150.43x = 70,450,669,652.44
  5. Step 5: Solve for x
    x = 70,450,669,652.44/305,150.43
  6. Step 6: Final answer
    x = 230,871.93

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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.