Home / 331,821.90-457,914.68-180,918.90

Finding the Fourth Proportional to 331,821.90, 457,914.68 and 180,918.90

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Solution

The fourth proportional to 331,821.90, 457,914.68 and 180,918.90 is: 249,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,821.90 : 457,914.68 = 180,918.90 : x
  2. Step 2: Convert to fraction form
    331,821.90/457,914.68 = 180,918.90/x
  3. Step 3: Cross multiply
    331,821.90x = 457,914.68 × 180,918.90
  4. Step 4: Simplify right side
    331,821.90x = 82,845,420,199.45
  5. Step 5: Solve for x
    x = 82,845,420,199.45/331,821.90
  6. Step 6: Final answer
    x = 249,668.33

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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.