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Finding the Fourth Proportional to 243,785.64, 336,426.33 and 136,365.67

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Solution

The fourth proportional to 243,785.64, 336,426.33 and 136,365.67 is: 188,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,785.64 : 336,426.33 = 136,365.67 : x
  2. Step 2: Convert to fraction form
    243,785.64/336,426.33 = 136,365.67/x
  3. Step 3: Cross multiply
    243,785.64x = 336,426.33 × 136,365.67
  4. Step 4: Simplify right side
    243,785.64x = 45,877,001,896.09
  5. Step 5: Solve for x
    x = 45,877,001,896.09/243,785.64
  6. Step 6: Final answer
    x = 188,185.83

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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.