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Finding the Fourth Proportional to 486,188.98, 670,977.98 and 268,439.64

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Solution

The fourth proportional to 486,188.98, 670,977.98 and 268,439.64 is: 370,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,188.98 : 670,977.98 = 268,439.64 : x
  2. Step 2: Convert to fraction form
    486,188.98/670,977.98 = 268,439.64/x
  3. Step 3: Cross multiply
    486,188.98x = 670,977.98 × 268,439.64
  4. Step 4: Simplify right side
    486,188.98x = 180,117,087,399.13
  5. Step 5: Solve for x
    x = 180,117,087,399.13/486,188.98
  6. Step 6: Final answer
    x = 370,467.24

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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.