Home / 217,454.81-300,097.71-135,831.38

Finding the Fourth Proportional to 217,454.81, 300,097.71 and 135,831.38

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Solution

The fourth proportional to 217,454.81, 300,097.71 and 135,831.38 is: 187,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,454.81 : 300,097.71 = 135,831.38 : x
  2. Step 2: Convert to fraction form
    217,454.81/300,097.71 = 135,831.38/x
  3. Step 3: Cross multiply
    217,454.81x = 300,097.71 × 135,831.38
  4. Step 4: Simplify right side
    217,454.81x = 40,762,684,583.65
  5. Step 5: Solve for x
    x = 40,762,684,583.65/217,454.81
  6. Step 6: Final answer
    x = 187,453.59

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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.