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Finding the Fourth Proportional to 351,805.20, 526,930.20 and 272,295.60

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Solution

The fourth proportional to 351,805.20, 526,930.20 and 272,295.60 is: 407,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,805.20 : 526,930.20 = 272,295.60 : x
  2. Step 2: Convert to fraction form
    351,805.20/526,930.20 = 272,295.60/x
  3. Step 3: Cross multiply
    351,805.20x = 526,930.20 × 272,295.60
  4. Step 4: Simplify right side
    351,805.20x = 143,480,774,967.12
  5. Step 5: Solve for x
    x = 143,480,774,967.12/351,805.20
  6. Step 6: Final answer
    x = 407,841.54

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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.