Home / 286,277.04-395,080.20-165,440.40

Finding the Fourth Proportional to 286,277.04, 395,080.20 and 165,440.40

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Solution

The fourth proportional to 286,277.04, 395,080.20 and 165,440.40 is: 228,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,277.04 : 395,080.20 = 165,440.40 : x
  2. Step 2: Convert to fraction form
    286,277.04/395,080.20 = 165,440.40/x
  3. Step 3: Cross multiply
    286,277.04x = 395,080.20 × 165,440.40
  4. Step 4: Simplify right side
    286,277.04x = 65,362,226,320.08
  5. Step 5: Solve for x
    x = 65,362,226,320.08/286,277.04
  6. Step 6: Final answer
    x = 228,318.09

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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.