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Finding the Fourth Proportional to 280,787.36, 387,362.22 and 167,544.68

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Solution

The fourth proportional to 280,787.36, 387,362.22 and 167,544.68 is: 231,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,787.36 : 387,362.22 = 167,544.68 : x
  2. Step 2: Convert to fraction form
    280,787.36/387,362.22 = 167,544.68/x
  3. Step 3: Cross multiply
    280,787.36x = 387,362.22 × 167,544.68
  4. Step 4: Simplify right side
    280,787.36x = 64,900,479,193.99
  5. Step 5: Solve for x
    x = 64,900,479,193.99/280,787.36
  6. Step 6: Final answer
    x = 231,137.47

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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.