Home / 389,376.93-537,238.59-228,145.35

Finding the Fourth Proportional to 389,376.93, 537,238.59 and 228,145.35

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Solution

The fourth proportional to 389,376.93, 537,238.59 and 228,145.35 is: 314,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,376.93 : 537,238.59 = 228,145.35 : x
  2. Step 2: Convert to fraction form
    389,376.93/537,238.59 = 228,145.35/x
  3. Step 3: Cross multiply
    389,376.93x = 537,238.59 × 228,145.35
  4. Step 4: Simplify right side
    389,376.93x = 122,568,486,149.06
  5. Step 5: Solve for x
    x = 122,568,486,149.06/389,376.93
  6. Step 6: Final answer
    x = 314,781.07

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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.