Home / 278,381.26-417,633.18-118,448.65

Finding the Fourth Proportional to 278,381.26, 417,633.18 and 118,448.65

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Solution

The fourth proportional to 278,381.26, 417,633.18 and 118,448.65 is: 177,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,381.26 : 417,633.18 = 118,448.65 : x
  2. Step 2: Convert to fraction form
    278,381.26/417,633.18 = 118,448.65/x
  3. Step 3: Cross multiply
    278,381.26x = 417,633.18 × 118,448.65
  4. Step 4: Simplify right side
    278,381.26x = 49,468,086,366.21
  5. Step 5: Solve for x
    x = 49,468,086,366.21/278,381.26
  6. Step 6: Final answer
    x = 177,699.05

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1.5x scale

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.