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Finding the Fourth Proportional to 281,506.77, 388,479.56 and 152,446.26

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Solution

The fourth proportional to 281,506.77, 388,479.56 and 152,446.26 is: 210,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,506.77 : 388,479.56 = 152,446.26 : x
  2. Step 2: Convert to fraction form
    281,506.77/388,479.56 = 152,446.26/x
  3. Step 3: Cross multiply
    281,506.77x = 388,479.56 × 152,446.26
  4. Step 4: Simplify right side
    281,506.77x = 59,222,256,703.01
  5. Step 5: Solve for x
    x = 59,222,256,703.01/281,506.77
  6. Step 6: Final answer
    x = 210,375.96

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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.