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Finding the Fourth Proportional to 290,516.16, 435,618.72 and 124,213.44

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Solution

The fourth proportional to 290,516.16, 435,618.72 and 124,213.44 is: 186,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,516.16 : 435,618.72 = 124,213.44 : x
  2. Step 2: Convert to fraction form
    290,516.16/435,618.72 = 124,213.44/x
  3. Step 3: Cross multiply
    290,516.16x = 435,618.72 × 124,213.44
  4. Step 4: Simplify right side
    290,516.16x = 54,109,699,739.60
  5. Step 5: Solve for x
    x = 54,109,699,739.60/290,516.16
  6. Step 6: Final answer
    x = 186,253.67

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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.