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Finding the Fourth Proportional to 299,115.36, 448,504.92 and 99,328.80

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Solution

The fourth proportional to 299,115.36, 448,504.92 and 99,328.80 is: 148,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,115.36 : 448,504.92 = 99,328.80 : x
  2. Step 2: Convert to fraction form
    299,115.36/448,504.92 = 99,328.80/x
  3. Step 3: Cross multiply
    299,115.36x = 448,504.92 × 99,328.80
  4. Step 4: Simplify right side
    299,115.36x = 44,549,455,497.70
  5. Step 5: Solve for x
    x = 44,549,455,497.70/299,115.36
  6. Step 6: Final answer
    x = 148,937.37

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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.