Home / 217,619.46-300,316.61-122,148.68

Finding the Fourth Proportional to 217,619.46, 300,316.61 and 122,148.68

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Solution

The fourth proportional to 217,619.46, 300,316.61 and 122,148.68 is: 168,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,619.46 : 300,316.61 = 122,148.68 : x
  2. Step 2: Convert to fraction form
    217,619.46/300,316.61 = 122,148.68/x
  3. Step 3: Cross multiply
    217,619.46x = 300,316.61 × 122,148.68
  4. Step 4: Simplify right side
    217,619.46x = 36,683,276,297.36
  5. Step 5: Solve for x
    x = 36,683,276,297.36/217,619.46
  6. Step 6: Final answer
    x = 168,566.16

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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.