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Finding the Fourth Proportional to 377,015.25, 520,267.86 and 207,248.16

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Solution

The fourth proportional to 377,015.25, 520,267.86 and 207,248.16 is: 285,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,015.25 : 520,267.86 = 207,248.16 : x
  2. Step 2: Convert to fraction form
    377,015.25/520,267.86 = 207,248.16/x
  3. Step 3: Cross multiply
    377,015.25x = 520,267.86 × 207,248.16
  4. Step 4: Simplify right side
    377,015.25x = 107,824,556,692.14
  5. Step 5: Solve for x
    x = 107,824,556,692.14/377,015.25
  6. Step 6: Final answer
    x = 285,995.21

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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.