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Finding the Fourth Proportional to 446,394.10, 616,130.13 and 255,517.78

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Solution

The fourth proportional to 446,394.10, 616,130.13 and 255,517.78 is: 352,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,394.10 : 616,130.13 = 255,517.78 : x
  2. Step 2: Convert to fraction form
    446,394.10/616,130.13 = 255,517.78/x
  3. Step 3: Cross multiply
    446,394.10x = 616,130.13 × 255,517.78
  4. Step 4: Simplify right side
    446,394.10x = 157,432,203,008.71
  5. Step 5: Solve for x
    x = 157,432,203,008.71/446,394.10
  6. Step 6: Final answer
    x = 352,675.37

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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.