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Finding the Fourth Proportional to 376,776.65, 519,665.31 and 260,683.28

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Solution

The fourth proportional to 376,776.65, 519,665.31 and 260,683.28 is: 359,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,776.65 : 519,665.31 = 260,683.28 : x
  2. Step 2: Convert to fraction form
    376,776.65/519,665.31 = 260,683.28/x
  3. Step 3: Cross multiply
    376,776.65x = 519,665.31 × 260,683.28
  4. Step 4: Simplify right side
    376,776.65x = 135,468,057,513.02
  5. Step 5: Solve for x
    x = 135,468,057,513.02/376,776.65
  6. Step 6: Final answer
    x = 359,544.73

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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.