Home / 321,119.21-481,746.45-121,435.18

Finding the Fourth Proportional to 321,119.21, 481,746.45 and 121,435.18

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Solution

The fourth proportional to 321,119.21, 481,746.45 and 121,435.18 is: 182,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,119.21 : 481,746.45 = 121,435.18 : x
  2. Step 2: Convert to fraction form
    321,119.21/481,746.45 = 121,435.18/x
  3. Step 3: Cross multiply
    321,119.21x = 481,746.45 × 121,435.18
  4. Step 4: Simplify right side
    321,119.21x = 58,500,966,870.11
  5. Step 5: Solve for x
    x = 58,500,966,870.11/321,119.21
  6. Step 6: Final answer
    x = 182,178.35

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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.