Home / 380,108.74-570,293.52-143,519.08

Finding the Fourth Proportional to 380,108.74, 570,293.52 and 143,519.08

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Solution

The fourth proportional to 380,108.74, 570,293.52 and 143,519.08 is: 215,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,108.74 : 570,293.52 = 143,519.08 : x
  2. Step 2: Convert to fraction form
    380,108.74/570,293.52 = 143,519.08/x
  3. Step 3: Cross multiply
    380,108.74x = 570,293.52 × 143,519.08
  4. Step 4: Simplify right side
    380,108.74x = 81,848,001,320.36
  5. Step 5: Solve for x
    x = 81,848,001,320.36/380,108.74
  6. Step 6: Final answer
    x = 215,327.86

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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.