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Finding the Fourth Proportional to 340,300.44, 510,411.78 and 91,001.88

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Solution

The fourth proportional to 340,300.44, 510,411.78 and 91,001.88 is: 136,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,300.44 : 510,411.78 = 91,001.88 : x
  2. Step 2: Convert to fraction form
    340,300.44/510,411.78 = 91,001.88/x
  3. Step 3: Cross multiply
    340,300.44x = 510,411.78 × 91,001.88
  4. Step 4: Simplify right side
    340,300.44x = 46,448,431,554.15
  5. Step 5: Solve for x
    x = 46,448,431,554.15/340,300.44
  6. Step 6: Final answer
    x = 136,492.42

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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.