Home / 219,431.40-329,173.50-77,247.15

Finding the Fourth Proportional to 219,431.40, 329,173.50 and 77,247.15

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Solution

The fourth proportional to 219,431.40, 329,173.50 and 77,247.15 is: 115,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,431.40 : 329,173.50 = 77,247.15 : x
  2. Step 2: Convert to fraction form
    219,431.40/329,173.50 = 77,247.15/x
  3. Step 3: Cross multiply
    219,431.40x = 329,173.50 × 77,247.15
  4. Step 4: Simplify right side
    219,431.40x = 25,427,714,730.53
  5. Step 5: Solve for x
    x = 25,427,714,730.53/219,431.40
  6. Step 6: Final answer
    x = 115,880.02

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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.