Home / 380,609.76-525,234.24-210,845.28

Finding the Fourth Proportional to 380,609.76, 525,234.24 and 210,845.28

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Solution

The fourth proportional to 380,609.76, 525,234.24 and 210,845.28 is: 290,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,609.76 : 525,234.24 = 210,845.28 : x
  2. Step 2: Convert to fraction form
    380,609.76/525,234.24 = 210,845.28/x
  3. Step 3: Cross multiply
    380,609.76x = 525,234.24 × 210,845.28
  4. Step 4: Simplify right side
    380,609.76x = 110,743,160,398.39
  5. Step 5: Solve for x
    x = 110,743,160,398.39/380,609.76
  6. Step 6: Final answer
    x = 290,962.48

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1.5x scale

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.