Home / 354,935.01-489,821.13-201,995.20

Finding the Fourth Proportional to 354,935.01, 489,821.13 and 201,995.20

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Solution

The fourth proportional to 354,935.01, 489,821.13 and 201,995.20 is: 278,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,935.01 : 489,821.13 = 201,995.20 : x
  2. Step 2: Convert to fraction form
    354,935.01/489,821.13 = 201,995.20/x
  3. Step 3: Cross multiply
    354,935.01x = 489,821.13 × 201,995.20
  4. Step 4: Simplify right side
    354,935.01x = 98,941,517,118.58
  5. Step 5: Solve for x
    x = 98,941,517,118.58/354,935.01
  6. Step 6: Final answer
    x = 278,759.53

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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.