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Finding the Fourth Proportional to 380,323.62, 570,451.32 and 114,143.58

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Solution

The fourth proportional to 380,323.62, 570,451.32 and 114,143.58 is: 171,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,323.62 : 570,451.32 = 114,143.58 : x
  2. Step 2: Convert to fraction form
    380,323.62/570,451.32 = 114,143.58/x
  3. Step 3: Cross multiply
    380,323.62x = 570,451.32 × 114,143.58
  4. Step 4: Simplify right side
    380,323.62x = 65,113,355,880.53
  5. Step 5: Solve for x
    x = 65,113,355,880.53/380,323.62
  6. Step 6: Final answer
    x = 171,205.13

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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.