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Finding the Fourth Proportional to 228,607.14, 315,282.37 and 137,943.84

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Solution

The fourth proportional to 228,607.14, 315,282.37 and 137,943.84 is: 190,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,607.14 : 315,282.37 = 137,943.84 : x
  2. Step 2: Convert to fraction form
    228,607.14/315,282.37 = 137,943.84/x
  3. Step 3: Cross multiply
    228,607.14x = 315,282.37 × 137,943.84
  4. Step 4: Simplify right side
    228,607.14x = 43,491,260,802.10
  5. Step 5: Solve for x
    x = 43,491,260,802.10/228,607.14
  6. Step 6: Final answer
    x = 190,244.54

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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.