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Finding the Fourth Proportional to 380,071.70, 570,107.55 and 374,166.80

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Solution

The fourth proportional to 380,071.70, 570,107.55 and 374,166.80 is: 561,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,071.70 : 570,107.55 = 374,166.80 : x
  2. Step 2: Convert to fraction form
    380,071.70/570,107.55 = 374,166.80/x
  3. Step 3: Cross multiply
    380,071.70x = 570,107.55 × 374,166.80
  4. Step 4: Simplify right side
    380,071.70x = 213,315,317,639.34
  5. Step 5: Solve for x
    x = 213,315,317,639.34/380,071.70
  6. Step 6: Final answer
    x = 561,250.20

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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.