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Finding the Fourth Proportional to 255,620.40, 383,430.60 and 236,374.80

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Solution

The fourth proportional to 255,620.40, 383,430.60 and 236,374.80 is: 354,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,620.40 : 383,430.60 = 236,374.80 : x
  2. Step 2: Convert to fraction form
    255,620.40/383,430.60 = 236,374.80/x
  3. Step 3: Cross multiply
    255,620.40x = 383,430.60 × 236,374.80
  4. Step 4: Simplify right side
    255,620.40x = 90,633,331,388.88
  5. Step 5: Solve for x
    x = 90,633,331,388.88/255,620.40
  6. Step 6: Final answer
    x = 354,562.20

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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.