Home / 379,265.33-523,386.15-209,499.46

Finding the Fourth Proportional to 379,265.33, 523,386.15 and 209,499.46

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Solution

The fourth proportional to 379,265.33, 523,386.15 and 209,499.46 is: 289,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,265.33 : 523,386.15 = 209,499.46 : x
  2. Step 2: Convert to fraction form
    379,265.33/523,386.15 = 209,499.46/x
  3. Step 3: Cross multiply
    379,265.33x = 523,386.15 × 209,499.46
  4. Step 4: Simplify right side
    379,265.33x = 109,649,115,796.48
  5. Step 5: Solve for x
    x = 109,649,115,796.48/379,265.33
  6. Step 6: Final answer
    x = 289,109.25

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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.