Home / 325,110.65-487,545-111,818.69

Finding the Fourth Proportional to 325,110.65, 487,545 and 111,818.69

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Solution

The fourth proportional to 325,110.65, 487,545 and 111,818.69 is: 167,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,110.65 : 487,545 = 111,818.69 : x
  2. Step 2: Convert to fraction form
    325,110.65/487,545 = 111,818.69/x
  3. Step 3: Cross multiply
    325,110.65x = 487,545 × 111,818.69
  4. Step 4: Simplify right side
    325,110.65x = 54,516,643,216.05
  5. Step 5: Solve for x
    x = 54,516,643,216.05/325,110.65
  6. Step 6: Final answer
    x = 167,686.43

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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.