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Finding the Fourth Proportional to 310,051.80, 427,756.68 and 195,299.64

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Solution

The fourth proportional to 310,051.80, 427,756.68 and 195,299.64 is: 269,441.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,051.80 : 427,756.68 = 195,299.64 : x
  2. Step 2: Convert to fraction form
    310,051.80/427,756.68 = 195,299.64/x
  3. Step 3: Cross multiply
    310,051.80x = 427,756.68 × 195,299.64
  4. Step 4: Simplify right side
    310,051.80x = 83,540,725,611.60
  5. Step 5: Solve for x
    x = 83,540,725,611.60/310,051.80
  6. Step 6: Final answer
    x = 269,441.19

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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.