Home / 207,548.20-311,322.30-136,689.40

Finding the Fourth Proportional to 207,548.20, 311,322.30 and 136,689.40

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Solution

The fourth proportional to 207,548.20, 311,322.30 and 136,689.40 is: 205,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,548.20 : 311,322.30 = 136,689.40 : x
  2. Step 2: Convert to fraction form
    207,548.20/311,322.30 = 136,689.40/x
  3. Step 3: Cross multiply
    207,548.20x = 311,322.30 × 136,689.40
  4. Step 4: Simplify right side
    207,548.20x = 42,554,458,393.62
  5. Step 5: Solve for x
    x = 42,554,458,393.62/207,548.20
  6. Step 6: Final answer
    x = 205,034.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.