Home / 371,044.26-512,041.20-209,895.86

Finding the Fourth Proportional to 371,044.26, 512,041.20 and 209,895.86

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Solution

The fourth proportional to 371,044.26, 512,041.20 and 209,895.86 is: 289,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,044.26 : 512,041.20 = 209,895.86 : x
  2. Step 2: Convert to fraction form
    371,044.26/512,041.20 = 209,895.86/x
  3. Step 3: Cross multiply
    371,044.26x = 512,041.20 × 209,895.86
  4. Step 4: Simplify right side
    371,044.26x = 107,475,328,029.43
  5. Step 5: Solve for x
    x = 107,475,328,029.43/371,044.26
  6. Step 6: Final answer
    x = 289,656.36

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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.