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Finding the Fourth Proportional to 225,880.04, 338,831.58 and 85,650.28

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Solution

The fourth proportional to 225,880.04, 338,831.58 and 85,650.28 is: 128,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,880.04 : 338,831.58 = 85,650.28 : x
  2. Step 2: Convert to fraction form
    225,880.04/338,831.58 = 85,650.28/x
  3. Step 3: Cross multiply
    225,880.04x = 338,831.58 × 85,650.28
  4. Step 4: Simplify right side
    225,880.04x = 29,021,019,699.84
  5. Step 5: Solve for x
    x = 29,021,019,699.84/225,880.04
  6. Step 6: Final answer
    x = 128,479.79

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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.