Home / 286,225.68-395,009.88-165,372.12

Finding the Fourth Proportional to 286,225.68, 395,009.88 and 165,372.12

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Solution

The fourth proportional to 286,225.68, 395,009.88 and 165,372.12 is: 228,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,225.68 : 395,009.88 = 165,372.12 : x
  2. Step 2: Convert to fraction form
    286,225.68/395,009.88 = 165,372.12/x
  3. Step 3: Cross multiply
    286,225.68x = 395,009.88 × 165,372.12
  4. Step 4: Simplify right side
    286,225.68x = 65,323,621,276.55
  5. Step 5: Solve for x
    x = 65,323,621,276.55/286,225.68
  6. Step 6: Final answer
    x = 228,224.18

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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.