Home / 286,511.60-395,342.04-165,629.36

Finding the Fourth Proportional to 286,511.60, 395,342.04 and 165,629.36

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Solution

The fourth proportional to 286,511.60, 395,342.04 and 165,629.36 is: 228,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.60 : 395,342.04 = 165,629.36 : x
  2. Step 2: Convert to fraction form
    286,511.60/395,342.04 = 165,629.36/x
  3. Step 3: Cross multiply
    286,511.60x = 395,342.04 × 165,629.36
  4. Step 4: Simplify right side
    286,511.60x = 65,480,249,066.29
  5. Step 5: Solve for x
    x = 65,480,249,066.29/286,511.60
  6. Step 6: Final answer
    x = 228,543.10

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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.