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Finding the Fourth Proportional to 310,071.80, 465,107.70 and 270,705.80

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Solution

The fourth proportional to 310,071.80, 465,107.70 and 270,705.80 is: 406,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,071.80 : 465,107.70 = 270,705.80 : x
  2. Step 2: Convert to fraction form
    310,071.80/465,107.70 = 270,705.80/x
  3. Step 3: Cross multiply
    310,071.80x = 465,107.70 × 270,705.80
  4. Step 4: Simplify right side
    310,071.80x = 125,907,352,014.66
  5. Step 5: Solve for x
    x = 125,907,352,014.66/310,071.80
  6. Step 6: Final answer
    x = 406,058.70

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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.