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Finding the Fourth Proportional to 310,153.25, 427,807.37 and 223,968.71

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Solution

The fourth proportional to 310,153.25, 427,807.37 and 223,968.71 is: 308,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,153.25 : 427,807.37 = 223,968.71 : x
  2. Step 2: Convert to fraction form
    310,153.25/427,807.37 = 223,968.71/x
  3. Step 3: Cross multiply
    310,153.25x = 427,807.37 × 223,968.71
  4. Step 4: Simplify right side
    310,153.25x = 95,815,463,667.55
  5. Step 5: Solve for x
    x = 95,815,463,667.55/310,153.25
  6. Step 6: Final answer
    x = 308,929.42

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1.5x scale

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.