Home / 218,835.84-302,025.60-133,939.20

Finding the Fourth Proportional to 218,835.84, 302,025.60 and 133,939.20

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Solution

The fourth proportional to 218,835.84, 302,025.60 and 133,939.20 is: 184,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,835.84 : 302,025.60 = 133,939.20 : x
  2. Step 2: Convert to fraction form
    218,835.84/302,025.60 = 133,939.20/x
  3. Step 3: Cross multiply
    218,835.84x = 302,025.60 × 133,939.20
  4. Step 4: Simplify right side
    218,835.84x = 40,453,067,243.52
  5. Step 5: Solve for x
    x = 40,453,067,243.52/218,835.84
  6. Step 6: Final answer
    x = 184,855.77

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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.