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Finding the Fourth Proportional to 388,678.26, 536,510.22 and 227,585.10

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Solution

The fourth proportional to 388,678.26, 536,510.22 and 227,585.10 is: 314,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,678.26 : 536,510.22 = 227,585.10 : x
  2. Step 2: Convert to fraction form
    388,678.26/536,510.22 = 227,585.10/x
  3. Step 3: Cross multiply
    388,678.26x = 536,510.22 × 227,585.10
  4. Step 4: Simplify right side
    388,678.26x = 122,101,732,069.72
  5. Step 5: Solve for x
    x = 122,101,732,069.72/388,678.26
  6. Step 6: Final answer
    x = 314,146.03

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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.