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Finding the Fourth Proportional to 298,846.80, 448,313.40 and 99,176.40

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Solution

The fourth proportional to 298,846.80, 448,313.40 and 99,176.40 is: 148,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,846.80 : 448,313.40 = 99,176.40 : x
  2. Step 2: Convert to fraction form
    298,846.80/448,313.40 = 99,176.40/x
  3. Step 3: Cross multiply
    298,846.80x = 448,313.40 × 99,176.40
  4. Step 4: Simplify right side
    298,846.80x = 44,462,109,083.76
  5. Step 5: Solve for x
    x = 44,462,109,083.76/298,846.80
  6. Step 6: Final answer
    x = 148,778.94

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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.