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Finding the Fourth Proportional to 310,594.64, 465,902.38 and 85,936.28

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Solution

The fourth proportional to 310,594.64, 465,902.38 and 85,936.28 is: 128,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,594.64 : 465,902.38 = 85,936.28 : x
  2. Step 2: Convert to fraction form
    310,594.64/465,902.38 = 85,936.28/x
  3. Step 3: Cross multiply
    310,594.64x = 465,902.38 × 85,936.28
  4. Step 4: Simplify right side
    310,594.64x = 40,037,915,158.25
  5. Step 5: Solve for x
    x = 40,037,915,158.25/310,594.64
  6. Step 6: Final answer
    x = 128,907.30

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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.