Home / 320,785.20-442,653.58-191,698.06

Finding the Fourth Proportional to 320,785.20, 442,653.58 and 191,698.06

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Solution

The fourth proportional to 320,785.20, 442,653.58 and 191,698.06 is: 264,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,785.20 : 442,653.58 = 191,698.06 : x
  2. Step 2: Convert to fraction form
    320,785.20/442,653.58 = 191,698.06/x
  3. Step 3: Cross multiply
    320,785.20x = 442,653.58 × 191,698.06
  4. Step 4: Simplify right side
    320,785.20x = 84,855,832,538.05
  5. Step 5: Solve for x
    x = 84,855,832,538.05/320,785.20
  6. Step 6: Final answer
    x = 264,525.40

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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.