Home / 371,187.12-512,231.13-210,039.24

Finding the Fourth Proportional to 371,187.12, 512,231.13 and 210,039.24

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Solution

The fourth proportional to 371,187.12, 512,231.13 and 210,039.24 is: 289,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,187.12 : 512,231.13 = 210,039.24 : x
  2. Step 2: Convert to fraction form
    371,187.12/512,231.13 = 210,039.24/x
  3. Step 3: Cross multiply
    371,187.12x = 512,231.13 × 210,039.24
  4. Step 4: Simplify right side
    371,187.12x = 107,588,637,249.54
  5. Step 5: Solve for x
    x = 107,588,637,249.54/371,187.12
  6. Step 6: Final answer
    x = 289,850.14

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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.