Home / 318,970.35-439,984.44-189,822.24

Finding the Fourth Proportional to 318,970.35, 439,984.44 and 189,822.24

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Solution

The fourth proportional to 318,970.35, 439,984.44 and 189,822.24 is: 261,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,970.35 : 439,984.44 = 189,822.24 : x
  2. Step 2: Convert to fraction form
    318,970.35/439,984.44 = 189,822.24/x
  3. Step 3: Cross multiply
    318,970.35x = 439,984.44 × 189,822.24
  4. Step 4: Simplify right side
    318,970.35x = 83,518,831,965.95
  5. Step 5: Solve for x
    x = 83,518,831,965.95/318,970.35
  6. Step 6: Final answer
    x = 261,838.86

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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.