Home / 379,212.93-523,313.55-209,447.10

Finding the Fourth Proportional to 379,212.93, 523,313.55 and 209,447.10

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Solution

The fourth proportional to 379,212.93, 523,313.55 and 209,447.10 is: 289,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,212.93 : 523,313.55 = 209,447.10 : x
  2. Step 2: Convert to fraction form
    379,212.93/523,313.55 = 209,447.10/x
  3. Step 3: Cross multiply
    379,212.93x = 523,313.55 × 209,447.10
  4. Step 4: Simplify right side
    379,212.93x = 109,606,505,438.21
  5. Step 5: Solve for x
    x = 109,606,505,438.21/379,212.93
  6. Step 6: Final answer
    x = 289,036.84

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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.