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Finding the Fourth Proportional to 228,775.60, 342,788.88 and 220,027.60

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Solution

The fourth proportional to 228,775.60, 342,788.88 and 220,027.60 is: 329,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,775.60 : 342,788.88 = 220,027.60 : x
  2. Step 2: Convert to fraction form
    228,775.60/342,788.88 = 220,027.60/x
  3. Step 3: Cross multiply
    228,775.60x = 342,788.88 × 220,027.60
  4. Step 4: Simplify right side
    228,775.60x = 75,423,014,573.09
  5. Step 5: Solve for x
    x = 75,423,014,573.09/228,775.60
  6. Step 6: Final answer
    x = 329,681.20

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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.