Home / 380,748.92-525,436.62-210,985.88

Finding the Fourth Proportional to 380,748.92, 525,436.62 and 210,985.88

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Solution

The fourth proportional to 380,748.92, 525,436.62 and 210,985.88 is: 291,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,748.92 : 525,436.62 = 210,985.88 : x
  2. Step 2: Convert to fraction form
    380,748.92/525,436.62 = 210,985.88/x
  3. Step 3: Cross multiply
    380,748.92x = 525,436.62 × 210,985.88
  4. Step 4: Simplify right side
    380,748.92x = 110,859,707,654.93
  5. Step 5: Solve for x
    x = 110,859,707,654.93/380,748.92
  6. Step 6: Final answer
    x = 291,162.24

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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.