Home / 228,972.96-343,014.70-128,827.80

Finding the Fourth Proportional to 228,972.96, 343,014.70 and 128,827.80

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Solution

The fourth proportional to 228,972.96, 343,014.70 and 128,827.80 is: 192,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,972.96 : 343,014.70 = 128,827.80 : x
  2. Step 2: Convert to fraction form
    228,972.96/343,014.70 = 128,827.80/x
  3. Step 3: Cross multiply
    228,972.96x = 343,014.70 × 128,827.80
  4. Step 4: Simplify right side
    228,972.96x = 44,189,829,168.66
  5. Step 5: Solve for x
    x = 44,189,829,168.66/228,972.96
  6. Step 6: Final answer
    x = 192,991.47

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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.