Home / 318,199.89-439,115.75-174,969.21

Finding the Fourth Proportional to 318,199.89, 439,115.75 and 174,969.21

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Solution

The fourth proportional to 318,199.89, 439,115.75 and 174,969.21 is: 241,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,199.89 : 439,115.75 = 174,969.21 : x
  2. Step 2: Convert to fraction form
    318,199.89/439,115.75 = 174,969.21/x
  3. Step 3: Cross multiply
    318,199.89x = 439,115.75 × 174,969.21
  4. Step 4: Simplify right side
    318,199.89x = 76,831,735,876.06
  5. Step 5: Solve for x
    x = 76,831,735,876.06/318,199.89
  6. Step 6: Final answer
    x = 241,457.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.