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Finding the Fourth Proportional to 286,475.00, 429,058.49 and 136,820.75

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Solution

The fourth proportional to 286,475.00, 429,058.49 and 136,820.75 is: 204,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,475.00 : 429,058.49 = 136,820.75 : x
  2. Step 2: Convert to fraction form
    286,475.00/429,058.49 = 136,820.75/x
  3. Step 3: Cross multiply
    286,475.00x = 429,058.49 × 136,820.75
  4. Step 4: Simplify right side
    286,475.00x = 58,704,101,566.27
  5. Step 5: Solve for x
    x = 58,704,101,566.27/286,475.00
  6. Step 6: Final answer
    x = 204,918.76

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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.