Home / 379,936.32-569,904.36-143,223.64

Finding the Fourth Proportional to 379,936.32, 569,904.36 and 143,223.64

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Solution

The fourth proportional to 379,936.32, 569,904.36 and 143,223.64 is: 214,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,936.32 : 569,904.36 = 143,223.64 : x
  2. Step 2: Convert to fraction form
    379,936.32/569,904.36 = 143,223.64/x
  3. Step 3: Cross multiply
    379,936.32x = 569,904.36 × 143,223.64
  4. Step 4: Simplify right side
    379,936.32x = 81,623,776,891.07
  5. Step 5: Solve for x
    x = 81,623,776,891.07/379,936.32
  6. Step 6: Final answer
    x = 214,835.41

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1.5x scale

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.