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Finding the Fourth Proportional to 202,831.20, 304,496.40 and 127,951.20

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Solution

The fourth proportional to 202,831.20, 304,496.40 and 127,951.20 is: 192,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,831.20 : 304,496.40 = 127,951.20 : x
  2. Step 2: Convert to fraction form
    202,831.20/304,496.40 = 127,951.20/x
  3. Step 3: Cross multiply
    202,831.20x = 304,496.40 × 127,951.20
  4. Step 4: Simplify right side
    202,831.20x = 38,960,679,775.68
  5. Step 5: Solve for x
    x = 38,960,679,775.68/202,831.20
  6. Step 6: Final answer
    x = 192,084.25

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1.5x scale

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.