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Finding the Fourth Proportional to 248,098.77, 342,368.30 and 140,678.37

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Solution

The fourth proportional to 248,098.77, 342,368.30 and 140,678.37 is: 194,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,098.77 : 342,368.30 = 140,678.37 : x
  2. Step 2: Convert to fraction form
    248,098.77/342,368.30 = 140,678.37/x
  3. Step 3: Cross multiply
    248,098.77x = 342,368.30 × 140,678.37
  4. Step 4: Simplify right side
    248,098.77x = 48,163,813,680.28
  5. Step 5: Solve for x
    x = 48,163,813,680.28/248,098.77
  6. Step 6: Final answer
    x = 194,131.61

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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.