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Finding the Fourth Proportional to 298,903.12, 447,856.32 and 245,759.02

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Solution

The fourth proportional to 298,903.12, 447,856.32 and 245,759.02 is: 368,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,903.12 : 447,856.32 = 245,759.02 : x
  2. Step 2: Convert to fraction form
    298,903.12/447,856.32 = 245,759.02/x
  3. Step 3: Cross multiply
    298,903.12x = 447,856.32 × 245,759.02
  4. Step 4: Simplify right side
    298,903.12x = 110,064,730,304.01
  5. Step 5: Solve for x
    x = 110,064,730,304.01/298,903.12
  6. Step 6: Final answer
    x = 368,228.78

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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.