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Finding the Fourth Proportional to 310,115.40, 464,877.81 and 99,605.73

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Solution

The fourth proportional to 310,115.40, 464,877.81 and 99,605.73 is: 149,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,115.40 : 464,877.81 = 99,605.73 : x
  2. Step 2: Convert to fraction form
    310,115.40/464,877.81 = 99,605.73/x
  3. Step 3: Cross multiply
    310,115.40x = 464,877.81 × 99,605.73
  4. Step 4: Simplify right side
    310,115.40x = 46,304,493,625.85
  5. Step 5: Solve for x
    x = 46,304,493,625.85/310,115.40
  6. Step 6: Final answer
    x = 149,313.75

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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.