Home / 318,485.36-439,509.30-191,161.52

Finding the Fourth Proportional to 318,485.36, 439,509.30 and 191,161.52

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Solution

The fourth proportional to 318,485.36, 439,509.30 and 191,161.52 is: 263,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,485.36 : 439,509.30 = 191,161.52 : x
  2. Step 2: Convert to fraction form
    318,485.36/439,509.30 = 191,161.52/x
  3. Step 3: Cross multiply
    318,485.36x = 439,509.30 × 191,161.52
  4. Step 4: Simplify right side
    318,485.36x = 84,017,265,842.14
  5. Step 5: Solve for x
    x = 84,017,265,842.14/318,485.36
  6. Step 6: Final answer
    x = 263,802.60

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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.