Home / 426,721.77-640,107.27-160,484.58

Finding the Fourth Proportional to 426,721.77, 640,107.27 and 160,484.58

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Solution

The fourth proportional to 426,721.77, 640,107.27 and 160,484.58 is: 240,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,721.77 : 640,107.27 = 160,484.58 : x
  2. Step 2: Convert to fraction form
    426,721.77/640,107.27 = 160,484.58/x
  3. Step 3: Cross multiply
    426,721.77x = 640,107.27 × 160,484.58
  4. Step 4: Simplify right side
    426,721.77x = 102,727,346,380.90
  5. Step 5: Solve for x
    x = 102,727,346,380.90/426,721.77
  6. Step 6: Final answer
    x = 240,736.13

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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.