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Finding the Fourth Proportional to 215,090.60, 322,344.30 and 143,810.60

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Solution

The fourth proportional to 215,090.60, 322,344.30 and 143,810.60 is: 215,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,090.60 : 322,344.30 = 143,810.60 : x
  2. Step 2: Convert to fraction form
    215,090.60/322,344.30 = 143,810.60/x
  3. Step 3: Cross multiply
    215,090.60x = 322,344.30 × 143,810.60
  4. Step 4: Simplify right side
    215,090.60x = 46,356,527,189.58
  5. Step 5: Solve for x
    x = 46,356,527,189.58/215,090.60
  6. Step 6: Final answer
    x = 215,520.93

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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.