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Finding the Fourth Proportional to 377,069.72, 520,357.56 and 207,314.60

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Solution

The fourth proportional to 377,069.72, 520,357.56 and 207,314.60 is: 286,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,069.72 : 520,357.56 = 207,314.60 : x
  2. Step 2: Convert to fraction form
    377,069.72/520,357.56 = 207,314.60/x
  3. Step 3: Cross multiply
    377,069.72x = 520,357.56 × 207,314.60
  4. Step 4: Simplify right side
    377,069.72x = 107,877,719,408.38
  5. Step 5: Solve for x
    x = 107,877,719,408.38/377,069.72
  6. Step 6: Final answer
    x = 286,094.89

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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.