Home / 286,212.60-395,445.78-214,828.92

Finding the Fourth Proportional to 286,212.60, 395,445.78 and 214,828.92

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Solution

The fourth proportional to 286,212.60, 395,445.78 and 214,828.92 is: 296,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,212.60 : 395,445.78 = 214,828.92 : x
  2. Step 2: Convert to fraction form
    286,212.60/395,445.78 = 214,828.92/x
  3. Step 3: Cross multiply
    286,212.60x = 395,445.78 × 214,828.92
  4. Step 4: Simplify right side
    286,212.60x = 84,953,189,835.96
  5. Step 5: Solve for x
    x = 84,953,189,835.96/286,212.60
  6. Step 6: Final answer
    x = 296,818.48

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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.