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Finding the Fourth Proportional to 299,982.60, 449,973.90 and 122,430.60

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Solution

The fourth proportional to 299,982.60, 449,973.90 and 122,430.60 is: 183,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,982.60 : 449,973.90 = 122,430.60 : x
  2. Step 2: Convert to fraction form
    299,982.60/449,973.90 = 122,430.60/x
  3. Step 3: Cross multiply
    299,982.60x = 449,973.90 × 122,430.60
  4. Step 4: Simplify right side
    299,982.60x = 55,090,574,561.34
  5. Step 5: Solve for x
    x = 55,090,574,561.34/299,982.60
  6. Step 6: Final answer
    x = 183,645.90

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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.