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Finding the Fourth Proportional to 346,682.40, 520,081.20 and 136,327.20

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Solution

The fourth proportional to 346,682.40, 520,081.20 and 136,327.20 is: 204,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,682.40 : 520,081.20 = 136,327.20 : x
  2. Step 2: Convert to fraction form
    346,682.40/520,081.20 = 136,327.20/x
  3. Step 3: Cross multiply
    346,682.40x = 520,081.20 × 136,327.20
  4. Step 4: Simplify right side
    346,682.40x = 70,901,213,768.64
  5. Step 5: Solve for x
    x = 70,901,213,768.64/346,682.40
  6. Step 6: Final answer
    x = 204,513.45

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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.