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Finding the Fourth Proportional to 298,499.10, 447,748.65 and 98,850.30

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Solution

The fourth proportional to 298,499.10, 447,748.65 and 98,850.30 is: 148,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,499.10 : 447,748.65 = 98,850.30 : x
  2. Step 2: Convert to fraction form
    298,499.10/447,748.65 = 98,850.30/x
  3. Step 3: Cross multiply
    298,499.10x = 447,748.65 × 98,850.30
  4. Step 4: Simplify right side
    298,499.10x = 44,260,088,377.10
  5. Step 5: Solve for x
    x = 44,260,088,377.10/298,499.10
  6. Step 6: Final answer
    x = 148,275.45

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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.