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Finding the Fourth Proportional to 446,010, 615,414.40 and 252,416.80

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Solution

The fourth proportional to 446,010, 615,414.40 and 252,416.80 is: 348,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,010 : 615,414.40 = 252,416.80 : x
  2. Step 2: Convert to fraction form
    446,010/615,414.40 = 252,416.80/x
  3. Step 3: Cross multiply
    446,010x = 615,414.40 × 252,416.80
  4. Step 4: Simplify right side
    446,010x = 155,340,933,521.92
  5. Step 5: Solve for x
    x = 155,340,933,521.92/446,010
  6. Step 6: Final answer
    x = 348,290.25

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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.