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Finding the Fourth Proportional to 228,241.40, 342,362.10 and 70,469.60

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Solution

The fourth proportional to 228,241.40, 342,362.10 and 70,469.60 is: 105,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,241.40 : 342,362.10 = 70,469.60 : x
  2. Step 2: Convert to fraction form
    228,241.40/342,362.10 = 70,469.60/x
  3. Step 3: Cross multiply
    228,241.40x = 342,362.10 × 70,469.60
  4. Step 4: Simplify right side
    228,241.40x = 24,126,120,242.16
  5. Step 5: Solve for x
    x = 24,126,120,242.16/228,241.40
  6. Step 6: Final answer
    x = 105,704.40

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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.