Home / 345,688.36-518,522.82-188,909.64

Finding the Fourth Proportional to 345,688.36, 518,522.82 and 188,909.64

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Solution

The fourth proportional to 345,688.36, 518,522.82 and 188,909.64 is: 283,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,688.36 : 518,522.82 = 188,909.64 : x
  2. Step 2: Convert to fraction form
    345,688.36/518,522.82 = 188,909.64/x
  3. Step 3: Cross multiply
    345,688.36x = 518,522.82 × 188,909.64
  4. Step 4: Simplify right side
    345,688.36x = 97,953,959,257.98
  5. Step 5: Solve for x
    x = 97,953,959,257.98/345,688.36
  6. Step 6: Final answer
    x = 283,359.15

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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.