Home / 234,138.02-322,891.20-155,416.77

Finding the Fourth Proportional to 234,138.02, 322,891.20 and 155,416.77

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Solution

The fourth proportional to 234,138.02, 322,891.20 and 155,416.77 is: 214,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,138.02 : 322,891.20 = 155,416.77 : x
  2. Step 2: Convert to fraction form
    234,138.02/322,891.20 = 155,416.77/x
  3. Step 3: Cross multiply
    234,138.02x = 322,891.20 × 155,416.77
  4. Step 4: Simplify right side
    234,138.02x = 50,182,706,020.18
  5. Step 5: Solve for x
    x = 50,182,706,020.18/234,138.02
  6. Step 6: Final answer
    x = 214,329.59

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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.