Home / 345,977.20-519,111.60-188,318.80

Finding the Fourth Proportional to 345,977.20, 519,111.60 and 188,318.80

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Solution

The fourth proportional to 345,977.20, 519,111.60 and 188,318.80 is: 282,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,977.20 : 519,111.60 = 188,318.80 : x
  2. Step 2: Convert to fraction form
    345,977.20/519,111.60 = 188,318.80/x
  3. Step 3: Cross multiply
    345,977.20x = 519,111.60 × 188,318.80
  4. Step 4: Simplify right side
    345,977.20x = 97,758,473,578.08
  5. Step 5: Solve for x
    x = 97,758,473,578.08/345,977.20
  6. Step 6: Final answer
    x = 282,557.56

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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.