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Finding the Fourth Proportional to 340,304.44, 510,417.74 and 91,005.88

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Solution

The fourth proportional to 340,304.44, 510,417.74 and 91,005.88 is: 136,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,304.44 : 510,417.74 = 91,005.88 : x
  2. Step 2: Convert to fraction form
    340,304.44/510,417.74 = 91,005.88/x
  3. Step 3: Cross multiply
    340,304.44x = 510,417.74 × 91,005.88
  4. Step 4: Simplify right side
    340,304.44x = 46,451,015,596.31
  5. Step 5: Solve for x
    x = 46,451,015,596.31/340,304.44
  6. Step 6: Final answer
    x = 136,498.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.