Home / 388,475.28-536,136.84-227,382.48

Finding the Fourth Proportional to 388,475.28, 536,136.84 and 227,382.48

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Solution

The fourth proportional to 388,475.28, 536,136.84 and 227,382.48 is: 313,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,475.28 : 536,136.84 = 227,382.48 : x
  2. Step 2: Convert to fraction form
    388,475.28/536,136.84 = 227,382.48/x
  3. Step 3: Cross multiply
    388,475.28x = 536,136.84 × 227,382.48
  4. Step 4: Simplify right side
    388,475.28x = 121,908,124,298.56
  5. Step 5: Solve for x
    x = 121,908,124,298.56/388,475.28
  6. Step 6: Final answer
    x = 313,811.79

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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.