Home / 454,451.80-681,671.30-205,133.40

Finding the Fourth Proportional to 454,451.80, 681,671.30 and 205,133.40

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Solution

The fourth proportional to 454,451.80, 681,671.30 and 205,133.40 is: 307,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,451.80 : 681,671.30 = 205,133.40 : x
  2. Step 2: Convert to fraction form
    454,451.80/681,671.30 = 205,133.40/x
  3. Step 3: Cross multiply
    454,451.80x = 681,671.30 × 205,133.40
  4. Step 4: Simplify right side
    454,451.80x = 139,833,551,451.42
  5. Step 5: Solve for x
    x = 139,833,551,451.42/454,451.80
  6. Step 6: Final answer
    x = 307,697.21

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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.