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Finding the Fourth Proportional to 351,037.40, 526,728.90 and 266,768.60

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Solution

The fourth proportional to 351,037.40, 526,728.90 and 266,768.60 is: 400,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,037.40 : 526,728.90 = 266,768.60 : x
  2. Step 2: Convert to fraction form
    351,037.40/526,728.90 = 266,768.60/x
  3. Step 3: Cross multiply
    351,037.40x = 526,728.90 × 266,768.60
  4. Step 4: Simplify right side
    351,037.40x = 140,514,731,232.54
  5. Step 5: Solve for x
    x = 140,514,731,232.54/351,037.40
  6. Step 6: Final answer
    x = 400,284.22

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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.