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Finding the Fourth Proportional to 310,625.60, 427,605.44 and 229,900.96

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Solution

The fourth proportional to 310,625.60, 427,605.44 and 229,900.96 is: 316,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,625.60 : 427,605.44 = 229,900.96 : x
  2. Step 2: Convert to fraction form
    310,625.60/427,605.44 = 229,900.96/x
  3. Step 3: Cross multiply
    310,625.60x = 427,605.44 × 229,900.96
  4. Step 4: Simplify right side
    310,625.60x = 98,306,901,157.22
  5. Step 5: Solve for x
    x = 98,306,901,157.22/310,625.60
  6. Step 6: Final answer
    x = 316,480.36

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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.