Home / 302,529.05-453,796.16-86,387.22

Finding the Fourth Proportional to 302,529.05, 453,796.16 and 86,387.22

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Solution

The fourth proportional to 302,529.05, 453,796.16 and 86,387.22 is: 129,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,529.05 : 453,796.16 = 86,387.22 : x
  2. Step 2: Convert to fraction form
    302,529.05/453,796.16 = 86,387.22/x
  3. Step 3: Cross multiply
    302,529.05x = 453,796.16 × 86,387.22
  4. Step 4: Simplify right side
    302,529.05x = 39,202,187,223.31
  5. Step 5: Solve for x
    x = 39,202,187,223.31/302,529.05
  6. Step 6: Final answer
    x = 129,581.57

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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.