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Finding the Fourth Proportional to 265,903.76, 366,940.50 and 145,047.80

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Solution

The fourth proportional to 265,903.76, 366,940.50 and 145,047.80 is: 200,162.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,903.76 : 366,940.50 = 145,047.80 : x
  2. Step 2: Convert to fraction form
    265,903.76/366,940.50 = 145,047.80/x
  3. Step 3: Cross multiply
    265,903.76x = 366,940.50 × 145,047.80
  4. Step 4: Simplify right side
    265,903.76x = 53,223,912,255.90
  5. Step 5: Solve for x
    x = 53,223,912,255.90/265,903.76
  6. Step 6: Final answer
    x = 200,162.32

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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.