Home / 221,312.40-331,968.60-193,664.40

Finding the Fourth Proportional to 221,312.40, 331,968.60 and 193,664.40

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Solution

The fourth proportional to 221,312.40, 331,968.60 and 193,664.40 is: 290,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,312.40 : 331,968.60 = 193,664.40 : x
  2. Step 2: Convert to fraction form
    221,312.40/331,968.60 = 193,664.40/x
  3. Step 3: Cross multiply
    221,312.40x = 331,968.60 × 193,664.40
  4. Step 4: Simplify right side
    221,312.40x = 64,290,499,737.84
  5. Step 5: Solve for x
    x = 64,290,499,737.84/221,312.40
  6. Step 6: Final answer
    x = 290,496.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.