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Finding the Fourth Proportional to 388,702.09, 536,427.14 and 227,609.03

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Solution

The fourth proportional to 388,702.09, 536,427.14 and 227,609.03 is: 314,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,702.09 : 536,427.14 = 227,609.03 : x
  2. Step 2: Convert to fraction form
    388,702.09/536,427.14 = 227,609.03/x
  3. Step 3: Cross multiply
    388,702.09x = 536,427.14 × 227,609.03
  4. Step 4: Simplify right side
    388,702.09x = 122,095,662,484.40
  5. Step 5: Solve for x
    x = 122,095,662,484.40/388,702.09
  6. Step 6: Final answer
    x = 314,111.16

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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.