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Finding the Fourth Proportional to 243,173.52, 335,415.60 and 211,287.60

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Solution

The fourth proportional to 243,173.52, 335,415.60 and 211,287.60 is: 291,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,173.52 : 335,415.60 = 211,287.60 : x
  2. Step 2: Convert to fraction form
    243,173.52/335,415.60 = 211,287.60/x
  3. Step 3: Cross multiply
    243,173.52x = 335,415.60 × 211,287.60
  4. Step 4: Simplify right side
    243,173.52x = 70,869,157,126.56
  5. Step 5: Solve for x
    x = 70,869,157,126.56/243,173.52
  6. Step 6: Final answer
    x = 291,434.52

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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.