Home / 343,579.62-515,570.40-143,883.24

Finding the Fourth Proportional to 343,579.62, 515,570.40 and 143,883.24

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Solution

The fourth proportional to 343,579.62, 515,570.40 and 143,883.24 is: 215,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,579.62 : 515,570.40 = 143,883.24 : x
  2. Step 2: Convert to fraction form
    343,579.62/515,570.40 = 143,883.24/x
  3. Step 3: Cross multiply
    343,579.62x = 515,570.40 × 143,883.24
  4. Step 4: Simplify right side
    343,579.62x = 74,181,939,600.10
  5. Step 5: Solve for x
    x = 74,181,939,600.10/343,579.62
  6. Step 6: Final answer
    x = 215,909.02

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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.