Home / 379,320.64-569,002.88-142,665.37

Finding the Fourth Proportional to 379,320.64, 569,002.88 and 142,665.37

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Solution

The fourth proportional to 379,320.64, 569,002.88 and 142,665.37 is: 214,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,320.64 : 569,002.88 = 142,665.37 : x
  2. Step 2: Convert to fraction form
    379,320.64/569,002.88 = 142,665.37/x
  3. Step 3: Cross multiply
    379,320.64x = 569,002.88 × 142,665.37
  4. Step 4: Simplify right side
    379,320.64x = 81,177,004,270.43
  5. Step 5: Solve for x
    x = 81,177,004,270.43/379,320.64
  6. Step 6: Final answer
    x = 214,006.30

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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.