Home / 320,909.72-442,902.06-184,917.20

Finding the Fourth Proportional to 320,909.72, 442,902.06 and 184,917.20

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Solution

The fourth proportional to 320,909.72, 442,902.06 and 184,917.20 is: 255,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,909.72 : 442,902.06 = 184,917.20 : x
  2. Step 2: Convert to fraction form
    320,909.72/442,902.06 = 184,917.20/x
  3. Step 3: Cross multiply
    320,909.72x = 442,902.06 × 184,917.20
  4. Step 4: Simplify right side
    320,909.72x = 81,900,209,223.25
  5. Step 5: Solve for x
    x = 81,900,209,223.25/320,909.72
  6. Step 6: Final answer
    x = 255,212.61

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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.