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Finding the Fourth Proportional to 618,814.53, 928,222.65 and 169,539.30

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Solution

The fourth proportional to 618,814.53, 928,222.65 and 169,539.30 is: 254,309.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,814.53 : 928,222.65 = 169,539.30 : x
  2. Step 2: Convert to fraction form
    618,814.53/928,222.65 = 169,539.30/x
  3. Step 3: Cross multiply
    618,814.53x = 928,222.65 × 169,539.30
  4. Step 4: Simplify right side
    618,814.53x = 157,370,218,325.15
  5. Step 5: Solve for x
    x = 157,370,218,325.15/618,814.53
  6. Step 6: Final answer
    x = 254,309.18

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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.