Home / 320,816.06-442,695.88-191,728.86

Finding the Fourth Proportional to 320,816.06, 442,695.88 and 191,728.86

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Solution

The fourth proportional to 320,816.06, 442,695.88 and 191,728.86 is: 264,567.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,816.06 : 442,695.88 = 191,728.86 : x
  2. Step 2: Convert to fraction form
    320,816.06/442,695.88 = 191,728.86/x
  3. Step 3: Cross multiply
    320,816.06x = 442,695.88 × 191,728.86
  4. Step 4: Simplify right side
    320,816.06x = 84,877,574,978.65
  5. Step 5: Solve for x
    x = 84,877,574,978.65/320,816.06
  6. Step 6: Final answer
    x = 264,567.73

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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.