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Finding the Fourth Proportional to 243,683.80, 336,282.53 and 136,253.84

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Solution

The fourth proportional to 243,683.80, 336,282.53 and 136,253.84 is: 188,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,683.80 : 336,282.53 = 136,253.84 : x
  2. Step 2: Convert to fraction form
    243,683.80/336,282.53 = 136,253.84/x
  3. Step 3: Cross multiply
    243,683.80x = 336,282.53 × 136,253.84
  4. Step 4: Simplify right side
    243,683.80x = 45,819,783,674.73
  5. Step 5: Solve for x
    x = 45,819,783,674.73/243,683.80
  6. Step 6: Final answer
    x = 188,029.67

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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.