Home / 380,887.41-525,620.70-208,814.85

Finding the Fourth Proportional to 380,887.41, 525,620.70 and 208,814.85

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Solution

The fourth proportional to 380,887.41, 525,620.70 and 208,814.85 is: 288,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,887.41 : 525,620.70 = 208,814.85 : x
  2. Step 2: Convert to fraction form
    380,887.41/525,620.70 = 208,814.85/x
  3. Step 3: Cross multiply
    380,887.41x = 525,620.70 × 208,814.85
  4. Step 4: Simplify right side
    380,887.41x = 109,757,407,627.40
  5. Step 5: Solve for x
    x = 109,757,407,627.40/380,887.41
  6. Step 6: Final answer
    x = 288,162.34

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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.