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Finding the Fourth Proportional to 225,117.39, 310,662.63 and 124,515.39

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Solution

The fourth proportional to 225,117.39, 310,662.63 and 124,515.39 is: 171,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,117.39 : 310,662.63 = 124,515.39 : x
  2. Step 2: Convert to fraction form
    225,117.39/310,662.63 = 124,515.39/x
  3. Step 3: Cross multiply
    225,117.39x = 310,662.63 × 124,515.39
  4. Step 4: Simplify right side
    225,117.39x = 38,682,278,532.88
  5. Step 5: Solve for x
    x = 38,682,278,532.88/225,117.39
  6. Step 6: Final answer
    x = 171,831.59

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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.