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Finding the Fourth Proportional to 388,702.37, 536,226 and 227,458.51

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Solution

The fourth proportional to 388,702.37, 536,226 and 227,458.51 is: 313,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,702.37 : 536,226 = 227,458.51 : x
  2. Step 2: Convert to fraction form
    388,702.37/536,226 = 227,458.51/x
  3. Step 3: Cross multiply
    388,702.37x = 536,226 × 227,458.51
  4. Step 4: Simplify right side
    388,702.37x = 121,969,166,983.26
  5. Step 5: Solve for x
    x = 121,969,166,983.26/388,702.37
  6. Step 6: Final answer
    x = 313,785.50

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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.