Home / 318,216.09-439,138.26-174,985.77

Finding the Fourth Proportional to 318,216.09, 439,138.26 and 174,985.77

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Solution

The fourth proportional to 318,216.09, 439,138.26 and 174,985.77 is: 241,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,216.09 : 439,138.26 = 174,985.77 : x
  2. Step 2: Convert to fraction form
    318,216.09/439,138.26 = 174,985.77/x
  3. Step 3: Cross multiply
    318,216.09x = 439,138.26 × 174,985.77
  4. Step 4: Simplify right side
    318,216.09x = 76,842,946,562.56
  5. Step 5: Solve for x
    x = 76,842,946,562.56/318,216.09
  6. Step 6: Final answer
    x = 241,480.39

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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.