Home / 347,329.20-521,528.40-189,865.20

Finding the Fourth Proportional to 347,329.20, 521,528.40 and 189,865.20

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Solution

The fourth proportional to 347,329.20, 521,528.40 and 189,865.20 is: 285,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,329.20 : 521,528.40 = 189,865.20 : x
  2. Step 2: Convert to fraction form
    347,329.20/521,528.40 = 189,865.20/x
  3. Step 3: Cross multiply
    347,329.20x = 521,528.40 × 189,865.20
  4. Step 4: Simplify right side
    347,329.20x = 99,020,093,971.68
  5. Step 5: Solve for x
    x = 99,020,093,971.68/347,329.20
  6. Step 6: Final answer
    x = 285,090.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.