Home / 331,819.40-457,911.23-180,916.40

Finding the Fourth Proportional to 331,819.40, 457,911.23 and 180,916.40

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Solution

The fourth proportional to 331,819.40, 457,911.23 and 180,916.40 is: 249,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,819.40 : 457,911.23 = 180,916.40 : x
  2. Step 2: Convert to fraction form
    331,819.40/457,911.23 = 180,916.40/x
  3. Step 3: Cross multiply
    331,819.40x = 457,911.23 × 180,916.40
  4. Step 4: Simplify right side
    331,819.40x = 82,843,648,057.03
  5. Step 5: Solve for x
    x = 82,843,648,057.03/331,819.40
  6. Step 6: Final answer
    x = 249,664.88

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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.