Home / 220,015.04-329,431.26-139,617.72

Finding the Fourth Proportional to 220,015.04, 329,431.26 and 139,617.72

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Solution

The fourth proportional to 220,015.04, 329,431.26 and 139,617.72 is: 209,051.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,015.04 : 329,431.26 = 139,617.72 : x
  2. Step 2: Convert to fraction form
    220,015.04/329,431.26 = 139,617.72/x
  3. Step 3: Cross multiply
    220,015.04x = 329,431.26 × 139,617.72
  4. Step 4: Simplify right side
    220,015.04x = 45,994,441,417.93
  5. Step 5: Solve for x
    x = 45,994,441,417.93/220,015.04
  6. Step 6: Final answer
    x = 209,051.36

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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.