Home / 371,190.40-512,237.24-218,245.76

Finding the Fourth Proportional to 371,190.40, 512,237.24 and 218,245.76

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Solution

The fourth proportional to 371,190.40, 512,237.24 and 218,245.76 is: 301,175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,190.40 : 512,237.24 = 218,245.76 : x
  2. Step 2: Convert to fraction form
    371,190.40/512,237.24 = 218,245.76/x
  3. Step 3: Cross multiply
    371,190.40x = 512,237.24 × 218,245.76
  4. Step 4: Simplify right side
    371,190.40x = 111,793,605,744.10
  5. Step 5: Solve for x
    x = 111,793,605,744.10/371,190.40
  6. Step 6: Final answer
    x = 301,175.91

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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.