Home / 379,284.30-569,145.15-142,796.70

Finding the Fourth Proportional to 379,284.30, 569,145.15 and 142,796.70

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Solution

The fourth proportional to 379,284.30, 569,145.15 and 142,796.70 is: 214,277.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,284.30 : 569,145.15 = 142,796.70 : x
  2. Step 2: Convert to fraction form
    379,284.30/569,145.15 = 142,796.70/x
  3. Step 3: Cross multiply
    379,284.30x = 569,145.15 × 142,796.70
  4. Step 4: Simplify right side
    379,284.30x = 81,272,049,241.01
  5. Step 5: Solve for x
    x = 81,272,049,241.01/379,284.30
  6. Step 6: Final answer
    x = 214,277.39

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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.