Home / 221,904.42-306,204.48-131,263.80

Finding the Fourth Proportional to 221,904.42, 306,204.48 and 131,263.80

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Solution

The fourth proportional to 221,904.42, 306,204.48 and 131,263.80 is: 181,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,904.42 : 306,204.48 = 131,263.80 : x
  2. Step 2: Convert to fraction form
    221,904.42/306,204.48 = 131,263.80/x
  3. Step 3: Cross multiply
    221,904.42x = 306,204.48 × 131,263.80
  4. Step 4: Simplify right side
    221,904.42x = 40,193,563,621.82
  5. Step 5: Solve for x
    x = 40,193,563,621.82/221,904.42
  6. Step 6: Final answer
    x = 181,130.07

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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.