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Finding the Fourth Proportional to 298,999.60, 448,499.40 and 99,350.80

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Solution

The fourth proportional to 298,999.60, 448,499.40 and 99,350.80 is: 149,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,999.60 : 448,499.40 = 99,350.80 : x
  2. Step 2: Convert to fraction form
    298,999.60/448,499.40 = 99,350.80/x
  3. Step 3: Cross multiply
    298,999.60x = 448,499.40 × 99,350.80
  4. Step 4: Simplify right side
    298,999.60x = 44,558,774,189.52
  5. Step 5: Solve for x
    x = 44,558,774,189.52/298,999.60
  6. Step 6: Final answer
    x = 149,026.20

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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.