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Finding the Fourth Proportional to 555,135.32, 765,766.96 and 334,218.82

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Solution

The fourth proportional to 555,135.32, 765,766.96 and 334,218.82 is: 461,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,135.32 : 765,766.96 = 334,218.82 : x
  2. Step 2: Convert to fraction form
    555,135.32/765,766.96 = 334,218.82/x
  3. Step 3: Cross multiply
    555,135.32x = 765,766.96 × 334,218.82
  4. Step 4: Simplify right side
    555,135.32x = 255,933,729,766.19
  5. Step 5: Solve for x
    x = 255,933,729,766.19/555,135.32
  6. Step 6: Final answer
    x = 461,029.45

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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.