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Finding the Fourth Proportional to 395,300.22, 545,507.70 and 214,010.67

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Solution

The fourth proportional to 395,300.22, 545,507.70 and 214,010.67 is: 295,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,300.22 : 545,507.70 = 214,010.67 : x
  2. Step 2: Convert to fraction form
    395,300.22/545,507.70 = 214,010.67/x
  3. Step 3: Cross multiply
    395,300.22x = 545,507.70 × 214,010.67
  4. Step 4: Simplify right side
    395,300.22x = 116,744,468,367.16
  5. Step 5: Solve for x
    x = 116,744,468,367.16/395,300.22
  6. Step 6: Final answer
    x = 295,331.15

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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.