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Finding the Fourth Proportional to 310,344.60, 465,747.30 and 123,490.20

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Solution

The fourth proportional to 310,344.60, 465,747.30 and 123,490.20 is: 185,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,344.60 : 465,747.30 = 123,490.20 : x
  2. Step 2: Convert to fraction form
    310,344.60/465,747.30 = 123,490.20/x
  3. Step 3: Cross multiply
    310,344.60x = 465,747.30 × 123,490.20
  4. Step 4: Simplify right side
    310,344.60x = 57,515,227,226.46
  5. Step 5: Solve for x
    x = 57,515,227,226.46/310,344.60
  6. Step 6: Final answer
    x = 185,326.98

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1.5x scale

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.