Home / 443,346.19-665,112.80-143,803.51

Finding the Fourth Proportional to 443,346.19, 665,112.80 and 143,803.51

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Solution

The fourth proportional to 443,346.19, 665,112.80 and 143,803.51 is: 215,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,346.19 : 665,112.80 = 143,803.51 : x
  2. Step 2: Convert to fraction form
    443,346.19/665,112.80 = 143,803.51/x
  3. Step 3: Cross multiply
    443,346.19x = 665,112.80 × 143,803.51
  4. Step 4: Simplify right side
    443,346.19x = 95,645,555,185.93
  5. Step 5: Solve for x
    x = 95,645,555,185.93/443,346.19
  6. Step 6: Final answer
    x = 215,735.60

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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.