Home / 388,277.43-535,718.23-227,172.07

Finding the Fourth Proportional to 388,277.43, 535,718.23 and 227,172.07

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Solution

The fourth proportional to 388,277.43, 535,718.23 and 227,172.07 is: 313,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,277.43 : 535,718.23 = 227,172.07 : x
  2. Step 2: Convert to fraction form
    388,277.43/535,718.23 = 227,172.07/x
  3. Step 3: Cross multiply
    388,277.43x = 535,718.23 × 227,172.07
  4. Step 4: Simplify right side
    388,277.43x = 121,700,219,245.84
  5. Step 5: Solve for x
    x = 121,700,219,245.84/388,277.43
  6. Step 6: Final answer
    x = 313,436.24

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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.