Home / 283,198.63-390,814.23-155,873.32

Finding the Fourth Proportional to 283,198.63, 390,814.23 and 155,873.32

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Solution

The fourth proportional to 283,198.63, 390,814.23 and 155,873.32 is: 215,105.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,198.63 : 390,814.23 = 155,873.32 : x
  2. Step 2: Convert to fraction form
    283,198.63/390,814.23 = 155,873.32/x
  3. Step 3: Cross multiply
    283,198.63x = 390,814.23 × 155,873.32
  4. Step 4: Simplify right side
    283,198.63x = 60,917,511,533.34
  5. Step 5: Solve for x
    x = 60,917,511,533.34/283,198.63
  6. Step 6: Final answer
    x = 215,105.25

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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.