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Finding the Fourth Proportional to 228,445.60, 342,700.80 and 70,657.60

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Solution

The fourth proportional to 228,445.60, 342,700.80 and 70,657.60 is: 105,996.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,445.60 : 342,700.80 = 70,657.60 : x
  2. Step 2: Convert to fraction form
    228,445.60/342,700.80 = 70,657.60/x
  3. Step 3: Cross multiply
    228,445.60x = 342,700.80 × 70,657.60
  4. Step 4: Simplify right side
    228,445.60x = 24,214,416,046.08
  5. Step 5: Solve for x
    x = 24,214,416,046.08/228,445.60
  6. Step 6: Final answer
    x = 105,996.42

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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.