Home / 379,268.32-523,406.16-218,123.48

Finding the Fourth Proportional to 379,268.32, 523,406.16 and 218,123.48

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Solution

The fourth proportional to 379,268.32, 523,406.16 and 218,123.48 is: 301,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,268.32 : 523,406.16 = 218,123.48 : x
  2. Step 2: Convert to fraction form
    379,268.32/523,406.16 = 218,123.48/x
  3. Step 3: Cross multiply
    379,268.32x = 523,406.16 × 218,123.48
  4. Step 4: Simplify right side
    379,268.32x = 114,167,169,364.99
  5. Step 5: Solve for x
    x = 114,167,169,364.99/379,268.32
  6. Step 6: Final answer
    x = 301,019.52

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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.