Home / 388,441.44-536,129.28-227,381.04

Finding the Fourth Proportional to 388,441.44, 536,129.28 and 227,381.04

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Solution

The fourth proportional to 388,441.44, 536,129.28 and 227,381.04 is: 313,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,441.44 : 536,129.28 = 227,381.04 : x
  2. Step 2: Convert to fraction form
    388,441.44/536,129.28 = 227,381.04/x
  3. Step 3: Cross multiply
    388,441.44x = 536,129.28 × 227,381.04
  4. Step 4: Simplify right side
    388,441.44x = 121,905,633,260.85
  5. Step 5: Solve for x
    x = 121,905,633,260.85/388,441.44
  6. Step 6: Final answer
    x = 313,832.72

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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.