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Finding the Fourth Proportional to 338,608.82, 467,327.81 and 209,588.72

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Solution

The fourth proportional to 338,608.82, 467,327.81 and 209,588.72 is: 289,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,608.82 : 467,327.81 = 209,588.72 : x
  2. Step 2: Convert to fraction form
    338,608.82/467,327.81 = 209,588.72/x
  3. Step 3: Cross multiply
    338,608.82x = 467,327.81 × 209,588.72
  4. Step 4: Simplify right side
    338,608.82x = 97,946,635,705.64
  5. Step 5: Solve for x
    x = 97,946,635,705.64/338,608.82
  6. Step 6: Final answer
    x = 289,261.91

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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.