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Finding the Fourth Proportional to 371,796.84, 513,078.30 and 210,682.68

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Solution

The fourth proportional to 371,796.84, 513,078.30 and 210,682.68 is: 290,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,796.84 : 513,078.30 = 210,682.68 : x
  2. Step 2: Convert to fraction form
    371,796.84/513,078.30 = 210,682.68/x
  3. Step 3: Cross multiply
    371,796.84x = 513,078.30 × 210,682.68
  4. Step 4: Simplify right side
    371,796.84x = 108,096,711,293.84
  5. Step 5: Solve for x
    x = 108,096,711,293.84/371,796.84
  6. Step 6: Final answer
    x = 290,741.34

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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.