Home / 388,280.93-535,723.07-227,175.57

Finding the Fourth Proportional to 388,280.93, 535,723.07 and 227,175.57

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Solution

The fourth proportional to 388,280.93, 535,723.07 and 227,175.57 is: 313,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,280.93 : 535,723.07 = 227,175.57 : x
  2. Step 2: Convert to fraction form
    388,280.93/535,723.07 = 227,175.57/x
  3. Step 3: Cross multiply
    388,280.93x = 535,723.07 × 227,175.57
  4. Step 4: Simplify right side
    388,280.93x = 121,703,192,653.52
  5. Step 5: Solve for x
    x = 121,703,192,653.52/388,280.93
  6. Step 6: Final answer
    x = 313,441.08

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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.