Home / 320,878.22-442,858.28-184,886.12

Finding the Fourth Proportional to 320,878.22, 442,858.28 and 184,886.12

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Solution

The fourth proportional to 320,878.22, 442,858.28 and 184,886.12 is: 255,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,878.22 : 442,858.28 = 184,886.12 : x
  2. Step 2: Convert to fraction form
    320,878.22/442,858.28 = 184,886.12/x
  3. Step 3: Cross multiply
    320,878.22x = 442,858.28 × 184,886.12
  4. Step 4: Simplify right side
    320,878.22x = 81,878,349,099.07
  5. Step 5: Solve for x
    x = 81,878,349,099.07/320,878.22
  6. Step 6: Final answer
    x = 255,169.54

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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.