Home / 307,997.18-425,031.64-172,033.08

Finding the Fourth Proportional to 307,997.18, 425,031.64 and 172,033.08

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Solution

The fourth proportional to 307,997.18, 425,031.64 and 172,033.08 is: 237,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,997.18 : 425,031.64 = 172,033.08 : x
  2. Step 2: Convert to fraction form
    307,997.18/425,031.64 = 172,033.08/x
  3. Step 3: Cross multiply
    307,997.18x = 425,031.64 × 172,033.08
  4. Step 4: Simplify right side
    307,997.18x = 73,119,502,126.65
  5. Step 5: Solve for x
    x = 73,119,502,126.65/307,997.18
  6. Step 6: Final answer
    x = 237,403.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.