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Finding the Fourth Proportional to 354,034.40, 531,051.60 and 340,037.60

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Solution

The fourth proportional to 354,034.40, 531,051.60 and 340,037.60 is: 510,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,034.40 : 531,051.60 = 340,037.60 : x
  2. Step 2: Convert to fraction form
    354,034.40/531,051.60 = 340,037.60/x
  3. Step 3: Cross multiply
    354,034.40x = 531,051.60 × 340,037.60
  4. Step 4: Simplify right side
    354,034.40x = 180,577,511,540.16
  5. Step 5: Solve for x
    x = 180,577,511,540.16/354,034.40
  6. Step 6: Final answer
    x = 510,056.40

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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.