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Finding the Fourth Proportional to 286,184.28, 429,276 and 108,690.96

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Solution

The fourth proportional to 286,184.28, 429,276 and 108,690.96 is: 163,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,184.28 : 429,276 = 108,690.96 : x
  2. Step 2: Convert to fraction form
    286,184.28/429,276 = 108,690.96/x
  3. Step 3: Cross multiply
    286,184.28x = 429,276 × 108,690.96
  4. Step 4: Simplify right side
    286,184.28x = 46,658,420,544.96
  5. Step 5: Solve for x
    x = 46,658,420,544.96/286,184.28
  6. Step 6: Final answer
    x = 163,036.28

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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.