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Finding the Fourth Proportional to 281,772.70, 388,886.20 and 174,377.32

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Solution

The fourth proportional to 281,772.70, 388,886.20 and 174,377.32 is: 240,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,772.70 : 388,886.20 = 174,377.32 : x
  2. Step 2: Convert to fraction form
    281,772.70/388,886.20 = 174,377.32/x
  3. Step 3: Cross multiply
    281,772.70x = 388,886.20 × 174,377.32
  4. Step 4: Simplify right side
    281,772.70x = 67,812,933,340.98
  5. Step 5: Solve for x
    x = 67,812,933,340.98/281,772.70
  6. Step 6: Final answer
    x = 240,665.38

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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.