Home / 349,849.60-524,083.20-209,190.40

Finding the Fourth Proportional to 349,849.60, 524,083.20 and 209,190.40

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Solution

The fourth proportional to 349,849.60, 524,083.20 and 209,190.40 is: 313,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,849.60 : 524,083.20 = 209,190.40 : x
  2. Step 2: Convert to fraction form
    349,849.60/524,083.20 = 209,190.40/x
  3. Step 3: Cross multiply
    349,849.60x = 524,083.20 × 209,190.40
  4. Step 4: Simplify right side
    349,849.60x = 109,633,174,241.28
  5. Step 5: Solve for x
    x = 109,633,174,241.28/349,849.60
  6. Step 6: Final answer
    x = 313,372.30

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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.