Home / 321,705.49-482,244.39-153,180.55

Finding the Fourth Proportional to 321,705.49, 482,244.39 and 153,180.55

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Solution

The fourth proportional to 321,705.49, 482,244.39 and 153,180.55 is: 229,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,705.49 : 482,244.39 = 153,180.55 : x
  2. Step 2: Convert to fraction form
    321,705.49/482,244.39 = 153,180.55/x
  3. Step 3: Cross multiply
    321,705.49x = 482,244.39 × 153,180.55
  4. Step 4: Simplify right side
    321,705.49x = 73,870,460,894.61
  5. Step 5: Solve for x
    x = 73,870,460,894.61/321,705.49
  6. Step 6: Final answer
    x = 229,621.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.