Home / 354,977.40-489,870.62-193,832.45

Finding the Fourth Proportional to 354,977.40, 489,870.62 and 193,832.45

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Solution

The fourth proportional to 354,977.40, 489,870.62 and 193,832.45 is: 267,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,977.40 : 489,870.62 = 193,832.45 : x
  2. Step 2: Convert to fraction form
    354,977.40/489,870.62 = 193,832.45/x
  3. Step 3: Cross multiply
    354,977.40x = 489,870.62 × 193,832.45
  4. Step 4: Simplify right side
    354,977.40x = 94,952,819,039.10
  5. Step 5: Solve for x
    x = 94,952,819,039.10/354,977.40
  6. Step 6: Final answer
    x = 267,489.76

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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.