Home / 318,192.40-439,063.26-197,289.58

Finding the Fourth Proportional to 318,192.40, 439,063.26 and 197,289.58

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Solution

The fourth proportional to 318,192.40, 439,063.26 and 197,289.58 is: 272,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,192.40 : 439,063.26 = 197,289.58 : x
  2. Step 2: Convert to fraction form
    318,192.40/439,063.26 = 197,289.58/x
  3. Step 3: Cross multiply
    318,192.40x = 439,063.26 × 197,289.58
  4. Step 4: Simplify right side
    318,192.40x = 86,622,606,158.83
  5. Step 5: Solve for x
    x = 86,622,606,158.83/318,192.40
  6. Step 6: Final answer
    x = 272,233.42

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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.