Home / 445,031.68-667,588.56-145,513.80

Finding the Fourth Proportional to 445,031.68, 667,588.56 and 145,513.80

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Solution

The fourth proportional to 445,031.68, 667,588.56 and 145,513.80 is: 218,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,031.68 : 667,588.56 = 145,513.80 : x
  2. Step 2: Convert to fraction form
    445,031.68/667,588.56 = 145,513.80/x
  3. Step 3: Cross multiply
    445,031.68x = 667,588.56 × 145,513.80
  4. Step 4: Simplify right side
    445,031.68x = 97,143,344,864.19
  5. Step 5: Solve for x
    x = 97,143,344,864.19/445,031.68
  6. Step 6: Final answer
    x = 218,284.11

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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.