Home / 443,220.12-664,927.35-143,730.96

Finding the Fourth Proportional to 443,220.12, 664,927.35 and 143,730.96

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Solution

The fourth proportional to 443,220.12, 664,927.35 and 143,730.96 is: 215,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,220.12 : 664,927.35 = 143,730.96 : x
  2. Step 2: Convert to fraction form
    443,220.12/664,927.35 = 143,730.96/x
  3. Step 3: Cross multiply
    443,220.12x = 664,927.35 × 143,730.96
  4. Step 4: Simplify right side
    443,220.12x = 95,570,643,313.29
  5. Step 5: Solve for x
    x = 95,570,643,313.29/443,220.12
  6. Step 6: Final answer
    x = 215,627.94

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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.