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Finding the Fourth Proportional to 203,187.14, 304,809.28 and 84,831.56

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Solution

The fourth proportional to 203,187.14, 304,809.28 and 84,831.56 is: 127,259.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,187.14 : 304,809.28 = 84,831.56 : x
  2. Step 2: Convert to fraction form
    203,187.14/304,809.28 = 84,831.56/x
  3. Step 3: Cross multiply
    203,187.14x = 304,809.28 × 84,831.56
  4. Step 4: Simplify right side
    203,187.14x = 25,857,444,988.75
  5. Step 5: Solve for x
    x = 25,857,444,988.75/203,187.14
  6. Step 6: Final answer
    x = 127,259.26

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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.