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Finding the Fourth Proportional to 280,316.73, 420,530.58 and 102,825.27

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Solution

The fourth proportional to 280,316.73, 420,530.58 and 102,825.27 is: 154,258.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,316.73 : 420,530.58 = 102,825.27 : x
  2. Step 2: Convert to fraction form
    280,316.73/420,530.58 = 102,825.27/x
  3. Step 3: Cross multiply
    280,316.73x = 420,530.58 × 102,825.27
  4. Step 4: Simplify right side
    280,316.73x = 43,241,170,431.76
  5. Step 5: Solve for x
    x = 43,241,170,431.76/280,316.73
  6. Step 6: Final answer
    x = 154,258.26

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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.