Home / 331,623.12-457,639.92-180,720

Finding the Fourth Proportional to 331,623.12, 457,639.92 and 180,720

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Solution

The fourth proportional to 331,623.12, 457,639.92 and 180,720 is: 249,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,623.12 : 457,639.92 = 180,720 : x
  2. Step 2: Convert to fraction form
    331,623.12/457,639.92 = 180,720/x
  3. Step 3: Cross multiply
    331,623.12x = 457,639.92 × 180,720
  4. Step 4: Simplify right side
    331,623.12x = 82,704,686,342.40
  5. Step 5: Solve for x
    x = 82,704,686,342.40/331,623.12
  6. Step 6: Final answer
    x = 249,393.61

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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.