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Finding the Fourth Proportional to 275,310.16, 412,877.74 and 187,130.32

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Solution

The fourth proportional to 275,310.16, 412,877.74 and 187,130.32 is: 280,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,310.16 : 412,877.74 = 187,130.32 : x
  2. Step 2: Convert to fraction form
    275,310.16/412,877.74 = 187,130.32/x
  3. Step 3: Cross multiply
    275,310.16x = 412,877.74 × 187,130.32
  4. Step 4: Simplify right side
    275,310.16x = 77,261,943,607.08
  5. Step 5: Solve for x
    x = 77,261,943,607.08/275,310.16
  6. Step 6: Final answer
    x = 280,636.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.