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Finding the Fourth Proportional to 357,415.94, 492,817.28 and 266,614.28

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Solution

The fourth proportional to 357,415.94, 492,817.28 and 266,614.28 is: 367,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,415.94 : 492,817.28 = 266,614.28 : x
  2. Step 2: Convert to fraction form
    357,415.94/492,817.28 = 266,614.28/x
  3. Step 3: Cross multiply
    357,415.94x = 492,817.28 × 266,614.28
  4. Step 4: Simplify right side
    357,415.94x = 131,392,120,481.60
  5. Step 5: Solve for x
    x = 131,392,120,481.60/357,415.94
  6. Step 6: Final answer
    x = 367,616.85

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1.5x scale

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.