Home / 306,917.75-423,567.77-186,064.13

Finding the Fourth Proportional to 306,917.75, 423,567.77 and 186,064.13

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Solution

The fourth proportional to 306,917.75, 423,567.77 and 186,064.13 is: 256,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,917.75 : 423,567.77 = 186,064.13 : x
  2. Step 2: Convert to fraction form
    306,917.75/423,567.77 = 186,064.13/x
  3. Step 3: Cross multiply
    306,917.75x = 423,567.77 × 186,064.13
  4. Step 4: Simplify right side
    306,917.75x = 78,810,765,572.93
  5. Step 5: Solve for x
    x = 78,810,765,572.93/306,917.75
  6. Step 6: Final answer
    x = 256,781.39

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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.