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Finding the Fourth Proportional to 342,994.00, 514,491.30 and 143,205.47

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Solution

The fourth proportional to 342,994.00, 514,491.30 and 143,205.47 is: 214,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,994.00 : 514,491.30 = 143,205.47 : x
  2. Step 2: Convert to fraction form
    342,994.00/514,491.30 = 143,205.47/x
  3. Step 3: Cross multiply
    342,994.00x = 514,491.30 × 143,205.47
  4. Step 4: Simplify right side
    342,994.00x = 73,677,969,713.64
  5. Step 5: Solve for x
    x = 73,677,969,713.64/342,994.00
  6. Step 6: Final answer
    x = 214,808.34

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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.