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Finding the Fourth Proportional to 308,660.37, 465,304.02 and 288,085.49

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Solution

The fourth proportional to 308,660.37, 465,304.02 and 288,085.49 is: 434,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,660.37 : 465,304.02 = 288,085.49 : x
  2. Step 2: Convert to fraction form
    308,660.37/465,304.02 = 288,085.49/x
  3. Step 3: Cross multiply
    308,660.37x = 465,304.02 × 288,085.49
  4. Step 4: Simplify right side
    308,660.37x = 134,047,334,440.29
  5. Step 5: Solve for x
    x = 134,047,334,440.29/308,660.37
  6. Step 6: Final answer
    x = 434,287.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.