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Finding the Fourth Proportional to 155,620, 233,430 and 38,884

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Solution

The fourth proportional to 155,620, 233,430 and 38,884 is: 58,326

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,620 : 233,430 = 38,884 : x
  2. Step 2: Convert to fraction form
    155,620/233,430 = 38,884/x
  3. Step 3: Cross multiply
    155,620x = 233,430 × 38,884
  4. Step 4: Simplify right side
    155,620x = 9,076,692,120
  5. Step 5: Solve for x
    x = 9,076,692,120/155,620
  6. Step 6: Final answer
    x = 58,326

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.