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Finding the Fourth Proportional to 345,339, 518,037.84 and 96,021

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Solution

The fourth proportional to 345,339, 518,037.84 and 96,021 is: 144,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,339 : 518,037.84 = 96,021 : x
  2. Step 2: Convert to fraction form
    345,339/518,037.84 = 96,021/x
  3. Step 3: Cross multiply
    345,339x = 518,037.84 × 96,021
  4. Step 4: Simplify right side
    345,339x = 49,742,511,434.64
  5. Step 5: Solve for x
    x = 49,742,511,434.64/345,339
  6. Step 6: Final answer
    x = 144,039.66

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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.