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Finding the Fourth Proportional to 351,244.40, 526,866.60 and 210,930.80

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Solution

The fourth proportional to 351,244.40, 526,866.60 and 210,930.80 is: 316,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,244.40 : 526,866.60 = 210,930.80 : x
  2. Step 2: Convert to fraction form
    351,244.40/526,866.60 = 210,930.80/x
  3. Step 3: Cross multiply
    351,244.40x = 526,866.60 × 210,930.80
  4. Step 4: Simplify right side
    351,244.40x = 111,132,393,431.28
  5. Step 5: Solve for x
    x = 111,132,393,431.28/351,244.40
  6. Step 6: Final answer
    x = 316,396.20

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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.