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Finding the Fourth Proportional to 248,166.72, 342,470.88 and 134,989.44

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Solution

The fourth proportional to 248,166.72, 342,470.88 and 134,989.44 is: 186,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,166.72 : 342,470.88 = 134,989.44 : x
  2. Step 2: Convert to fraction form
    248,166.72/342,470.88 = 134,989.44/x
  3. Step 3: Cross multiply
    248,166.72x = 342,470.88 × 134,989.44
  4. Step 4: Simplify right side
    248,166.72x = 46,229,952,307.51
  5. Step 5: Solve for x
    x = 46,229,952,307.51/248,166.72
  6. Step 6: Final answer
    x = 186,285.87

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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.