Home / 371,305.27-512,313.42-210,160.30

Finding the Fourth Proportional to 371,305.27, 512,313.42 and 210,160.30

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Solution

The fourth proportional to 371,305.27, 512,313.42 and 210,160.30 is: 289,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,305.27 : 512,313.42 = 210,160.30 : x
  2. Step 2: Convert to fraction form
    371,305.27/512,313.42 = 210,160.30/x
  3. Step 3: Cross multiply
    371,305.27x = 512,313.42 × 210,160.30
  4. Step 4: Simplify right side
    371,305.27x = 107,667,942,041.23
  5. Step 5: Solve for x
    x = 107,667,942,041.23/371,305.27
  6. Step 6: Final answer
    x = 289,971.49

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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.