Home / 320,780.64-442,638.45-184,859.13

Finding the Fourth Proportional to 320,780.64, 442,638.45 and 184,859.13

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Solution

The fourth proportional to 320,780.64, 442,638.45 and 184,859.13 is: 255,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,780.64 : 442,638.45 = 184,859.13 : x
  2. Step 2: Convert to fraction form
    320,780.64/442,638.45 = 184,859.13/x
  3. Step 3: Cross multiply
    320,780.64x = 442,638.45 × 184,859.13
  4. Step 4: Simplify right side
    320,780.64x = 81,825,758,771.55
  5. Step 5: Solve for x
    x = 81,825,758,771.55/320,780.64
  6. Step 6: Final answer
    x = 255,083.22

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1.5x scale

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.