Home / 302,531.05-453,799.16-86,389.22

Finding the Fourth Proportional to 302,531.05, 453,799.16 and 86,389.22

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Solution

The fourth proportional to 302,531.05, 453,799.16 and 86,389.22 is: 129,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,531.05 : 453,799.16 = 86,389.22 : x
  2. Step 2: Convert to fraction form
    302,531.05/453,799.16 = 86,389.22/x
  3. Step 3: Cross multiply
    302,531.05x = 453,799.16 × 86,389.22
  4. Step 4: Simplify right side
    302,531.05x = 39,203,355,469.06
  5. Step 5: Solve for x
    x = 39,203,355,469.06/302,531.05
  6. Step 6: Final answer
    x = 129,584.57

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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.