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Finding the Fourth Proportional to 281,937.36, 388,966.80 and 179,966.64

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Solution

The fourth proportional to 281,937.36, 388,966.80 and 179,966.64 is: 248,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,937.36 : 388,966.80 = 179,966.64 : x
  2. Step 2: Convert to fraction form
    281,937.36/388,966.80 = 179,966.64/x
  3. Step 3: Cross multiply
    281,937.36x = 388,966.80 × 179,966.64
  4. Step 4: Simplify right side
    281,937.36x = 70,001,048,067.55
  5. Step 5: Solve for x
    x = 70,001,048,067.55/281,937.36
  6. Step 6: Final answer
    x = 248,285.82

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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.