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Finding the Fourth Proportional to 243,391.43, 335,622.18 and 167,021.90

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Solution

The fourth proportional to 243,391.43, 335,622.18 and 167,021.90 is: 230,313.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,391.43 : 335,622.18 = 167,021.90 : x
  2. Step 2: Convert to fraction form
    243,391.43/335,622.18 = 167,021.90/x
  3. Step 3: Cross multiply
    243,391.43x = 335,622.18 × 167,021.90
  4. Step 4: Simplify right side
    243,391.43x = 56,056,254,392.55
  5. Step 5: Solve for x
    x = 56,056,254,392.55/243,391.43
  6. Step 6: Final answer
    x = 230,313.18

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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.