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Finding the Fourth Proportional to 377,450.51, 521,074.69 and 291,215.73

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Solution

The fourth proportional to 377,450.51, 521,074.69 and 291,215.73 is: 402,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,450.51 : 521,074.69 = 291,215.73 : x
  2. Step 2: Convert to fraction form
    377,450.51/521,074.69 = 291,215.73/x
  3. Step 3: Cross multiply
    377,450.51x = 521,074.69 × 291,215.73
  4. Step 4: Simplify right side
    377,450.51x = 151,745,142,171.42
  5. Step 5: Solve for x
    x = 151,745,142,171.42/377,450.51
  6. Step 6: Final answer
    x = 402,026.60

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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.