Home / 311,837.38-430,048.65-204,368.38

Finding the Fourth Proportional to 311,837.38, 430,048.65 and 204,368.38

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Solution

The fourth proportional to 311,837.38, 430,048.65 and 204,368.38 is: 281,840.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,837.38 : 430,048.65 = 204,368.38 : x
  2. Step 2: Convert to fraction form
    311,837.38/430,048.65 = 204,368.38/x
  3. Step 3: Cross multiply
    311,837.38x = 430,048.65 × 204,368.38
  4. Step 4: Simplify right side
    311,837.38x = 87,888,345,921.69
  5. Step 5: Solve for x
    x = 87,888,345,921.69/311,837.38
  6. Step 6: Final answer
    x = 281,840.32

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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.