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Finding the Fourth Proportional to 329,825.39, 455,159.92 and 178,922.39

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Solution

The fourth proportional to 329,825.39, 455,159.92 and 178,922.39 is: 246,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,825.39 : 455,159.92 = 178,922.39 : x
  2. Step 2: Convert to fraction form
    329,825.39/455,159.92 = 178,922.39/x
  3. Step 3: Cross multiply
    329,825.39x = 455,159.92 × 178,922.39
  4. Step 4: Simplify right side
    329,825.39x = 81,438,300,718.61
  5. Step 5: Solve for x
    x = 81,438,300,718.61/329,825.39
  6. Step 6: Final answer
    x = 246,913.38

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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.