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Finding the Fourth Proportional to 508,267.32, 701,431.08 and 304,278.94

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Solution

The fourth proportional to 508,267.32, 701,431.08 and 304,278.94 is: 419,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,267.32 : 701,431.08 = 304,278.94 : x
  2. Step 2: Convert to fraction form
    508,267.32/701,431.08 = 304,278.94/x
  3. Step 3: Cross multiply
    508,267.32x = 701,431.08 × 304,278.94
  4. Step 4: Simplify right side
    508,267.32x = 213,430,705,241.20
  5. Step 5: Solve for x
    x = 213,430,705,241.20/508,267.32
  6. Step 6: Final answer
    x = 419,918.22

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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.