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Finding the Fourth Proportional to 306,986.84, 420,573.52 and 295,481.40

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Solution

The fourth proportional to 306,986.84, 420,573.52 and 295,481.40 is: 404,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,986.84 : 420,573.52 = 295,481.40 : x
  2. Step 2: Convert to fraction form
    306,986.84/420,573.52 = 295,481.40/x
  3. Step 3: Cross multiply
    306,986.84x = 420,573.52 × 295,481.40
  4. Step 4: Simplify right side
    306,986.84x = 124,271,652,492.53
  5. Step 5: Solve for x
    x = 124,271,652,492.53/306,986.84
  6. Step 6: Final answer
    x = 404,811.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.