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Finding the Fourth Proportional to 281,473.36, 388,425.98 and 157,295.36

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Solution

The fourth proportional to 281,473.36, 388,425.98 and 157,295.36 is: 217,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,473.36 : 388,425.98 = 157,295.36 : x
  2. Step 2: Convert to fraction form
    281,473.36/388,425.98 = 157,295.36/x
  3. Step 3: Cross multiply
    281,473.36x = 388,425.98 × 157,295.36
  4. Step 4: Simplify right side
    281,473.36x = 61,097,605,721.76
  5. Step 5: Solve for x
    x = 61,097,605,721.76/281,473.36
  6. Step 6: Final answer
    x = 217,063.55

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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.