Home / 285,135.33-393,442.86-164,253

Finding the Fourth Proportional to 285,135.33, 393,442.86 and 164,253

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Solution

The fourth proportional to 285,135.33, 393,442.86 and 164,253 is: 226,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,135.33 : 393,442.86 = 164,253 : x
  2. Step 2: Convert to fraction form
    285,135.33/393,442.86 = 164,253/x
  3. Step 3: Cross multiply
    285,135.33x = 393,442.86 × 164,253
  4. Step 4: Simplify right side
    285,135.33x = 64,624,170,083.58
  5. Step 5: Solve for x
    x = 64,624,170,083.58/285,135.33
  6. Step 6: Final answer
    x = 226,643.85

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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.