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Finding the Fourth Proportional to 243,409.79, 364,226.56 and 143,617.79

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Solution

The fourth proportional to 243,409.79, 364,226.56 and 143,617.79 is: 214,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,409.79 : 364,226.56 = 143,617.79 : x
  2. Step 2: Convert to fraction form
    243,409.79/364,226.56 = 143,617.79/x
  3. Step 3: Cross multiply
    243,409.79x = 364,226.56 × 143,617.79
  4. Step 4: Simplify right side
    243,409.79x = 52,309,413,606.50
  5. Step 5: Solve for x
    x = 52,309,413,606.50/243,409.79
  6. Step 6: Final answer
    x = 214,902.67

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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.