Home / 228,400.55-315,120.30-132,888.79

Finding the Fourth Proportional to 228,400.55, 315,120.30 and 132,888.79

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Solution

The fourth proportional to 228,400.55, 315,120.30 and 132,888.79 is: 183,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,400.55 : 315,120.30 = 132,888.79 : x
  2. Step 2: Convert to fraction form
    228,400.55/315,120.30 = 132,888.79/x
  3. Step 3: Cross multiply
    228,400.55x = 315,120.30 × 132,888.79
  4. Step 4: Simplify right side
    228,400.55x = 41,875,954,706.99
  5. Step 5: Solve for x
    x = 41,875,954,706.99/228,400.55
  6. Step 6: Final answer
    x = 183,344.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.