Home / 236,831.40-355,247.10-217,477.80

Finding the Fourth Proportional to 236,831.40, 355,247.10 and 217,477.80

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Solution

The fourth proportional to 236,831.40, 355,247.10 and 217,477.80 is: 326,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,831.40 : 355,247.10 = 217,477.80 : x
  2. Step 2: Convert to fraction form
    236,831.40/355,247.10 = 217,477.80/x
  3. Step 3: Cross multiply
    236,831.40x = 355,247.10 × 217,477.80
  4. Step 4: Simplify right side
    236,831.40x = 77,258,357,764.38
  5. Step 5: Solve for x
    x = 77,258,357,764.38/236,831.40
  6. Step 6: Final answer
    x = 326,216.70

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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.