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Finding the Fourth Proportional to 268,865, 371,033.70 and 149,661.16

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Solution

The fourth proportional to 268,865, 371,033.70 and 149,661.16 is: 206,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,865 : 371,033.70 = 149,661.16 : x
  2. Step 2: Convert to fraction form
    268,865/371,033.70 = 149,661.16/x
  3. Step 3: Cross multiply
    268,865x = 371,033.70 × 149,661.16
  4. Step 4: Simplify right side
    268,865x = 55,529,333,941.09
  5. Step 5: Solve for x
    x = 55,529,333,941.09/268,865
  6. Step 6: Final answer
    x = 206,532.40

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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.