Home / 228,827.20-343,240.80-135,438.40

Finding the Fourth Proportional to 228,827.20, 343,240.80 and 135,438.40

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Solution

The fourth proportional to 228,827.20, 343,240.80 and 135,438.40 is: 203,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,827.20 : 343,240.80 = 135,438.40 : x
  2. Step 2: Convert to fraction form
    228,827.20/343,240.80 = 135,438.40/x
  3. Step 3: Cross multiply
    228,827.20x = 343,240.80 × 135,438.40
  4. Step 4: Simplify right side
    228,827.20x = 46,487,984,766.72
  5. Step 5: Solve for x
    x = 46,487,984,766.72/228,827.20
  6. Step 6: Final answer
    x = 203,157.60

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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.