Home / 318,372.27-439,354.77-175,143.21

Finding the Fourth Proportional to 318,372.27, 439,354.77 and 175,143.21

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Solution

The fourth proportional to 318,372.27, 439,354.77 and 175,143.21 is: 241,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,372.27 : 439,354.77 = 175,143.21 : x
  2. Step 2: Convert to fraction form
    318,372.27/439,354.77 = 175,143.21/x
  3. Step 3: Cross multiply
    318,372.27x = 439,354.77 × 175,143.21
  4. Step 4: Simplify right side
    318,372.27x = 76,950,001,674.12
  5. Step 5: Solve for x
    x = 76,950,001,674.12/318,372.27
  6. Step 6: Final answer
    x = 241,698.19

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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.