Home / 316,271.19-436,411.20-188,919.75

Finding the Fourth Proportional to 316,271.19, 436,411.20 and 188,919.75

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Solution

The fourth proportional to 316,271.19, 436,411.20 and 188,919.75 is: 260,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,271.19 : 436,411.20 = 188,919.75 : x
  2. Step 2: Convert to fraction form
    316,271.19/436,411.20 = 188,919.75/x
  3. Step 3: Cross multiply
    316,271.19x = 436,411.20 × 188,919.75
  4. Step 4: Simplify right side
    316,271.19x = 82,446,694,801.20
  5. Step 5: Solve for x
    x = 82,446,694,801.20/316,271.19
  6. Step 6: Final answer
    x = 260,683.54

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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.