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Finding the Fourth Proportional to 380,615.60, 570,923.40 and 222,762.80

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Solution

The fourth proportional to 380,615.60, 570,923.40 and 222,762.80 is: 334,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,615.60 : 570,923.40 = 222,762.80 : x
  2. Step 2: Convert to fraction form
    380,615.60/570,923.40 = 222,762.80/x
  3. Step 3: Cross multiply
    380,615.60x = 570,923.40 × 222,762.80
  4. Step 4: Simplify right side
    380,615.60x = 127,180,495,169.52
  5. Step 5: Solve for x
    x = 127,180,495,169.52/380,615.60
  6. Step 6: Final answer
    x = 334,144.20

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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.