Home / 281,225.40-388,031.04-166,540.08

Finding the Fourth Proportional to 281,225.40, 388,031.04 and 166,540.08

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Solution

The fourth proportional to 281,225.40, 388,031.04 and 166,540.08 is: 229,789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,225.40 : 388,031.04 = 166,540.08 : x
  2. Step 2: Convert to fraction form
    281,225.40/388,031.04 = 166,540.08/x
  3. Step 3: Cross multiply
    281,225.40x = 388,031.04 × 166,540.08
  4. Step 4: Simplify right side
    281,225.40x = 64,622,720,444.08
  5. Step 5: Solve for x
    x = 64,622,720,444.08/281,225.40
  6. Step 6: Final answer
    x = 229,789.77

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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.