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Finding the Fourth Proportional to 446,217.78, 615,780.48 and 245,013.78

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Solution

The fourth proportional to 446,217.78, 615,780.48 and 245,013.78 is: 338,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,217.78 : 615,780.48 = 245,013.78 : x
  2. Step 2: Convert to fraction form
    446,217.78/615,780.48 = 245,013.78/x
  3. Step 3: Cross multiply
    446,217.78x = 615,780.48 × 245,013.78
  4. Step 4: Simplify right side
    446,217.78x = 150,874,703,055.01
  5. Step 5: Solve for x
    x = 150,874,703,055.01/446,217.78
  6. Step 6: Final answer
    x = 338,118.99

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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.