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Finding the Fourth Proportional to 341,702.80, 512,554.20 and 131,347.60

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Solution

The fourth proportional to 341,702.80, 512,554.20 and 131,347.60 is: 197,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,702.80 : 512,554.20 = 131,347.60 : x
  2. Step 2: Convert to fraction form
    341,702.80/512,554.20 = 131,347.60/x
  3. Step 3: Cross multiply
    341,702.80x = 512,554.20 × 131,347.60
  4. Step 4: Simplify right side
    341,702.80x = 67,322,764,039.92
  5. Step 5: Solve for x
    x = 67,322,764,039.92/341,702.80
  6. Step 6: Final answer
    x = 197,021.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.