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Finding the Fourth Proportional to 340,668.64, 511,082.84 and 104,011.36

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Solution

The fourth proportional to 340,668.64, 511,082.84 and 104,011.36 is: 156,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,668.64 : 511,082.84 = 104,011.36 : x
  2. Step 2: Convert to fraction form
    340,668.64/511,082.84 = 104,011.36/x
  3. Step 3: Cross multiply
    340,668.64x = 511,082.84 × 104,011.36
  4. Step 4: Simplify right side
    340,668.64x = 53,158,421,261.06
  5. Step 5: Solve for x
    x = 53,158,421,261.06/340,668.64
  6. Step 6: Final answer
    x = 156,041.43

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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.