Home / 281,528.32-388,638.72-166,799.36

Finding the Fourth Proportional to 281,528.32, 388,638.72 and 166,799.36

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Solution

The fourth proportional to 281,528.32, 388,638.72 and 166,799.36 is: 230,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,528.32 : 388,638.72 = 166,799.36 : x
  2. Step 2: Convert to fraction form
    281,528.32/388,638.72 = 166,799.36/x
  3. Step 3: Cross multiply
    281,528.32x = 388,638.72 × 166,799.36
  4. Step 4: Simplify right side
    281,528.32x = 64,824,689,767.22
  5. Step 5: Solve for x
    x = 64,824,689,767.22/281,528.32
  6. Step 6: Final answer
    x = 230,259.92

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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.