Home / 379,201.50-523,298.07-209,446.56

Finding the Fourth Proportional to 379,201.50, 523,298.07 and 209,446.56

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Solution

The fourth proportional to 379,201.50, 523,298.07 and 209,446.56 is: 289,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,201.50 : 523,298.07 = 209,446.56 : x
  2. Step 2: Convert to fraction form
    379,201.50/523,298.07 = 209,446.56/x
  3. Step 3: Cross multiply
    379,201.50x = 523,298.07 × 209,446.56
  4. Step 4: Simplify right side
    379,201.50x = 109,602,980,616.14
  5. Step 5: Solve for x
    x = 109,602,980,616.14/379,201.50
  6. Step 6: Final answer
    x = 289,036.25

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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.