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Finding the Fourth Proportional to 346,788, 520,182 and 84,132

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Solution

The fourth proportional to 346,788, 520,182 and 84,132 is: 126,198

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,788 : 520,182 = 84,132 : x
  2. Step 2: Convert to fraction form
    346,788/520,182 = 84,132/x
  3. Step 3: Cross multiply
    346,788x = 520,182 × 84,132
  4. Step 4: Simplify right side
    346,788x = 43,763,952,024
  5. Step 5: Solve for x
    x = 43,763,952,024/346,788
  6. Step 6: Final answer
    x = 126,198

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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.