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Finding the Fourth Proportional to 493,166.88, 680,567.67 and 278,376.75

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Solution

The fourth proportional to 493,166.88, 680,567.67 and 278,376.75 is: 384,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,166.88 : 680,567.67 = 278,376.75 : x
  2. Step 2: Convert to fraction form
    493,166.88/680,567.67 = 278,376.75/x
  3. Step 3: Cross multiply
    493,166.88x = 680,567.67 × 278,376.75
  4. Step 4: Simplify right side
    493,166.88x = 189,454,216,129.67
  5. Step 5: Solve for x
    x = 189,454,216,129.67/493,166.88
  6. Step 6: Final answer
    x = 384,158.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.