Home / 379,976.80-524,365.68-210,207.28

Finding the Fourth Proportional to 379,976.80, 524,365.68 and 210,207.28

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Solution

The fourth proportional to 379,976.80, 524,365.68 and 210,207.28 is: 290,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,976.80 : 524,365.68 = 210,207.28 : x
  2. Step 2: Convert to fraction form
    379,976.80/524,365.68 = 210,207.28/x
  3. Step 3: Cross multiply
    379,976.80x = 524,365.68 × 210,207.28
  4. Step 4: Simplify right side
    379,976.80x = 110,225,483,318.15
  5. Step 5: Solve for x
    x = 110,225,483,318.15/379,976.80
  6. Step 6: Final answer
    x = 290,084.77

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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.