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Finding the Fourth Proportional to 277,873.80, 416,810.70 and 90,840.20

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Solution

The fourth proportional to 277,873.80, 416,810.70 and 90,840.20 is: 136,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,873.80 : 416,810.70 = 90,840.20 : x
  2. Step 2: Convert to fraction form
    277,873.80/416,810.70 = 90,840.20/x
  3. Step 3: Cross multiply
    277,873.80x = 416,810.70 × 90,840.20
  4. Step 4: Simplify right side
    277,873.80x = 37,863,167,350.14
  5. Step 5: Solve for x
    x = 37,863,167,350.14/277,873.80
  6. Step 6: Final answer
    x = 136,260.30

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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.