Home / 221,340.22-305,448.87-120,737.50

Finding the Fourth Proportional to 221,340.22, 305,448.87 and 120,737.50

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Solution

The fourth proportional to 221,340.22, 305,448.87 and 120,737.50 is: 166,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,340.22 : 305,448.87 = 120,737.50 : x
  2. Step 2: Convert to fraction form
    221,340.22/305,448.87 = 120,737.50/x
  3. Step 3: Cross multiply
    221,340.22x = 305,448.87 × 120,737.50
  4. Step 4: Simplify right side
    221,340.22x = 36,879,132,941.63
  5. Step 5: Solve for x
    x = 36,879,132,941.63/221,340.22
  6. Step 6: Final answer
    x = 166,617.40

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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.