Home / 371,220.03-512,279.24-218,356.83

Finding the Fourth Proportional to 371,220.03, 512,279.24 and 218,356.83

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Solution

The fourth proportional to 371,220.03, 512,279.24 and 218,356.83 is: 301,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,220.03 : 512,279.24 = 218,356.83 : x
  2. Step 2: Convert to fraction form
    371,220.03/512,279.24 = 218,356.83/x
  3. Step 3: Cross multiply
    371,220.03x = 512,279.24 × 218,356.83
  4. Step 4: Simplify right side
    371,220.03x = 111,859,669,829.43
  5. Step 5: Solve for x
    x = 111,859,669,829.43/371,220.03
  6. Step 6: Final answer
    x = 301,329.83

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1.5x scale

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.