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Finding the Fourth Proportional to 298,444.40, 447,745.80 and 129,892.40

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Solution

The fourth proportional to 298,444.40, 447,745.80 and 129,892.40 is: 194,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,444.40 : 447,745.80 = 129,892.40 : x
  2. Step 2: Convert to fraction form
    298,444.40/447,745.80 = 129,892.40/x
  3. Step 3: Cross multiply
    298,444.40x = 447,745.80 × 129,892.40
  4. Step 4: Simplify right side
    298,444.40x = 58,158,776,551.92
  5. Step 5: Solve for x
    x = 58,158,776,551.92/298,444.40
  6. Step 6: Final answer
    x = 194,873.07

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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.