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Finding the Fourth Proportional to 277,485.47, 416,059.66 and 108,803.70

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Solution

The fourth proportional to 277,485.47, 416,059.66 and 108,803.70 is: 163,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,485.47 : 416,059.66 = 108,803.70 : x
  2. Step 2: Convert to fraction form
    277,485.47/416,059.66 = 108,803.70/x
  3. Step 3: Cross multiply
    277,485.47x = 416,059.66 × 108,803.70
  4. Step 4: Simplify right side
    277,485.47x = 45,268,831,428.90
  5. Step 5: Solve for x
    x = 45,268,831,428.90/277,485.47
  6. Step 6: Final answer
    x = 163,139.47

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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.