Home / 259,927.22-389,003.72-217,854.81

Finding the Fourth Proportional to 259,927.22, 389,003.72 and 217,854.81

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Solution

The fourth proportional to 259,927.22, 389,003.72 and 217,854.81 is: 326,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,927.22 : 389,003.72 = 217,854.81 : x
  2. Step 2: Convert to fraction form
    259,927.22/389,003.72 = 217,854.81/x
  3. Step 3: Cross multiply
    259,927.22x = 389,003.72 × 217,854.81
  4. Step 4: Simplify right side
    259,927.22x = 84,746,331,509.89
  5. Step 5: Solve for x
    x = 84,746,331,509.89/259,927.22
  6. Step 6: Final answer
    x = 326,038.69

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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.