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Finding the Fourth Proportional to 281,322.64, 388,229.52 and 154,010.08

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Solution

The fourth proportional to 281,322.64, 388,229.52 and 154,010.08 is: 212,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,322.64 : 388,229.52 = 154,010.08 : x
  2. Step 2: Convert to fraction form
    281,322.64/388,229.52 = 154,010.08/x
  3. Step 3: Cross multiply
    281,322.64x = 388,229.52 × 154,010.08
  4. Step 4: Simplify right side
    281,322.64x = 59,791,259,433.56
  5. Step 5: Solve for x
    x = 59,791,259,433.56/281,322.64
  6. Step 6: Final answer
    x = 212,536.25

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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.