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Finding the Fourth Proportional to 356,103.60, 534,769.80 and 345,044.40

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Solution

The fourth proportional to 356,103.60, 534,769.80 and 345,044.40 is: 518,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,103.60 : 534,769.80 = 345,044.40 : x
  2. Step 2: Convert to fraction form
    356,103.60/534,769.80 = 345,044.40/x
  3. Step 3: Cross multiply
    356,103.60x = 534,769.80 × 345,044.40
  4. Step 4: Simplify right side
    356,103.60x = 184,519,324,779.12
  5. Step 5: Solve for x
    x = 184,519,324,779.12/356,103.60
  6. Step 6: Final answer
    x = 518,161.92

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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.