Home / 445,853.70-615,278.07-254,871.36

Finding the Fourth Proportional to 445,853.70, 615,278.07 and 254,871.36

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Solution

The fourth proportional to 445,853.70, 615,278.07 and 254,871.36 is: 351,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,853.70 : 615,278.07 = 254,871.36 : x
  2. Step 2: Convert to fraction form
    445,853.70/615,278.07 = 254,871.36/x
  3. Step 3: Cross multiply
    445,853.70x = 615,278.07 × 254,871.36
  4. Step 4: Simplify right side
    445,853.70x = 156,816,758,479.08
  5. Step 5: Solve for x
    x = 156,816,758,479.08/445,853.70
  6. Step 6: Final answer
    x = 351,722.46

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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.