Home / 379,194.48-523,289.16-209,429.28

Finding the Fourth Proportional to 379,194.48, 523,289.16 and 209,429.28

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Solution

The fourth proportional to 379,194.48, 523,289.16 and 209,429.28 is: 289,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,194.48 : 523,289.16 = 209,429.28 : x
  2. Step 2: Convert to fraction form
    379,194.48/523,289.16 = 209,429.28/x
  3. Step 3: Cross multiply
    379,194.48x = 523,289.16 × 209,429.28
  4. Step 4: Simplify right side
    379,194.48x = 109,592,072,010.61
  5. Step 5: Solve for x
    x = 109,592,072,010.61/379,194.48
  6. Step 6: Final answer
    x = 289,012.84

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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.