Home / 281,290.32-388,167.12-153,966.96

Finding the Fourth Proportional to 281,290.32, 388,167.12 and 153,966.96

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Solution

The fourth proportional to 281,290.32, 388,167.12 and 153,966.96 is: 212,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,290.32 : 388,167.12 = 153,966.96 : x
  2. Step 2: Convert to fraction form
    281,290.32/388,167.12 = 153,966.96/x
  3. Step 3: Cross multiply
    281,290.32x = 388,167.12 × 153,966.96
  4. Step 4: Simplify right side
    281,290.32x = 59,764,911,438.36
  5. Step 5: Solve for x
    x = 59,764,911,438.36/281,290.32
  6. Step 6: Final answer
    x = 212,467.00

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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.