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Finding the Fourth Proportional to 377,415.36, 520,747.68 and 275,496.36

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Solution

The fourth proportional to 377,415.36, 520,747.68 and 275,496.36 is: 380,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,415.36 : 520,747.68 = 275,496.36 : x
  2. Step 2: Convert to fraction form
    377,415.36/520,747.68 = 275,496.36/x
  3. Step 3: Cross multiply
    377,415.36x = 520,747.68 × 275,496.36
  4. Step 4: Simplify right side
    377,415.36x = 143,464,090,318.45
  5. Step 5: Solve for x
    x = 143,464,090,318.45/377,415.36
  6. Step 6: Final answer
    x = 380,122.55

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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.