Home / 329,824.16-455,158.20-178,921.16

Finding the Fourth Proportional to 329,824.16, 455,158.20 and 178,921.16

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Solution

The fourth proportional to 329,824.16, 455,158.20 and 178,921.16 is: 246,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,824.16 : 455,158.20 = 178,921.16 : x
  2. Step 2: Convert to fraction form
    329,824.16/455,158.20 = 178,921.16/x
  3. Step 3: Cross multiply
    329,824.16x = 455,158.20 × 178,921.16
  4. Step 4: Simplify right side
    329,824.16x = 81,437,430,851.72
  5. Step 5: Solve for x
    x = 81,437,430,851.72/329,824.16
  6. Step 6: Final answer
    x = 246,911.66

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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.