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Finding the Fourth Proportional to 248,171.72, 342,477.78 and 134,994.44

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Solution

The fourth proportional to 248,171.72, 342,477.78 and 134,994.44 is: 186,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,171.72 : 342,477.78 = 134,994.44 : x
  2. Step 2: Convert to fraction form
    248,171.72/342,477.78 = 134,994.44/x
  3. Step 3: Cross multiply
    248,171.72x = 342,477.78 × 134,994.44
  4. Step 4: Simplify right side
    248,171.72x = 46,232,596,123.54
  5. Step 5: Solve for x
    x = 46,232,596,123.54/248,171.72
  6. Step 6: Final answer
    x = 186,292.77

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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.