Home / 371,379.66-512,516.19-210,231.36

Finding the Fourth Proportional to 371,379.66, 512,516.19 and 210,231.36

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Solution

The fourth proportional to 371,379.66, 512,516.19 and 210,231.36 is: 290,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,379.66 : 512,516.19 = 210,231.36 : x
  2. Step 2: Convert to fraction form
    371,379.66/512,516.19 = 210,231.36/x
  3. Step 3: Cross multiply
    371,379.66x = 512,516.19 × 210,231.36
  4. Step 4: Simplify right side
    371,379.66x = 107,746,975,645.72
  5. Step 5: Solve for x
    x = 107,746,975,645.72/371,379.66
  6. Step 6: Final answer
    x = 290,126.22

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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.