Home / 217,619.04-300,239.28-122,112.48

Finding the Fourth Proportional to 217,619.04, 300,239.28 and 122,112.48

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Solution

The fourth proportional to 217,619.04, 300,239.28 and 122,112.48 is: 168,473.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,619.04 : 300,239.28 = 122,112.48 : x
  2. Step 2: Convert to fraction form
    217,619.04/300,239.28 = 122,112.48/x
  3. Step 3: Cross multiply
    217,619.04x = 300,239.28 × 122,112.48
  4. Step 4: Simplify right side
    217,619.04x = 36,662,963,074.21
  5. Step 5: Solve for x
    x = 36,662,963,074.21/217,619.04
  6. Step 6: Final answer
    x = 168,473.14

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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.