Home / 221,207.60-331,811.40-186,647.60

Finding the Fourth Proportional to 221,207.60, 331,811.40 and 186,647.60

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Solution

The fourth proportional to 221,207.60, 331,811.40 and 186,647.60 is: 279,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,207.60 : 331,811.40 = 186,647.60 : x
  2. Step 2: Convert to fraction form
    221,207.60/331,811.40 = 186,647.60/x
  3. Step 3: Cross multiply
    221,207.60x = 331,811.40 × 186,647.60
  4. Step 4: Simplify right side
    221,207.60x = 61,931,801,462.64
  5. Step 5: Solve for x
    x = 61,931,801,462.64/221,207.60
  6. Step 6: Final answer
    x = 279,971.40

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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.