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Finding the Fourth Proportional to 228,228.60, 342,375.30 and 70,440.60

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Solution

The fourth proportional to 228,228.60, 342,375.30 and 70,440.60 is: 105,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,228.60 : 342,375.30 = 70,440.60 : x
  2. Step 2: Convert to fraction form
    228,228.60/342,375.30 = 70,440.60/x
  3. Step 3: Cross multiply
    228,228.60x = 342,375.30 × 70,440.60
  4. Step 4: Simplify right side
    228,228.60x = 24,117,121,557.18
  5. Step 5: Solve for x
    x = 24,117,121,557.18/228,228.60
  6. Step 6: Final answer
    x = 105,670.90

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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.