Home / 371,638.26-512,849.07-210,508.20

Finding the Fourth Proportional to 371,638.26, 512,849.07 and 210,508.20

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Solution

The fourth proportional to 371,638.26, 512,849.07 and 210,508.20 is: 290,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,638.26 : 512,849.07 = 210,508.20 : x
  2. Step 2: Convert to fraction form
    371,638.26/512,849.07 = 210,508.20/x
  3. Step 3: Cross multiply
    371,638.26x = 512,849.07 × 210,508.20
  4. Step 4: Simplify right side
    371,638.26x = 107,958,934,597.37
  5. Step 5: Solve for x
    x = 107,958,934,597.37/371,638.26
  6. Step 6: Final answer
    x = 290,494.67

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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.