Home / 285,429.24-393,892.74-158,104.44

Finding the Fourth Proportional to 285,429.24, 393,892.74 and 158,104.44

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Solution

The fourth proportional to 285,429.24, 393,892.74 and 158,104.44 is: 218,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,429.24 : 393,892.74 = 158,104.44 : x
  2. Step 2: Convert to fraction form
    285,429.24/393,892.74 = 158,104.44/x
  3. Step 3: Cross multiply
    285,429.24x = 393,892.74 × 158,104.44
  4. Step 4: Simplify right side
    285,429.24x = 62,276,191,077.77
  5. Step 5: Solve for x
    x = 62,276,191,077.77/285,429.24
  6. Step 6: Final answer
    x = 218,184.34

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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.