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Finding the Fourth Proportional to 286,576.20, 429,864.30 and 269,080.20

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Solution

The fourth proportional to 286,576.20, 429,864.30 and 269,080.20 is: 403,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,576.20 : 429,864.30 = 269,080.20 : x
  2. Step 2: Convert to fraction form
    286,576.20/429,864.30 = 269,080.20/x
  3. Step 3: Cross multiply
    286,576.20x = 429,864.30 × 269,080.20
  4. Step 4: Simplify right side
    286,576.20x = 115,667,971,816.86
  5. Step 5: Solve for x
    x = 115,667,971,816.86/286,576.20
  6. Step 6: Final answer
    x = 403,620.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.