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Finding the Fourth Proportional to 286,419.01, 429,690.48 and 108,929.38

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Solution

The fourth proportional to 286,419.01, 429,690.48 and 108,929.38 is: 163,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,419.01 : 429,690.48 = 108,929.38 : x
  2. Step 2: Convert to fraction form
    286,419.01/429,690.48 = 108,929.38/x
  3. Step 3: Cross multiply
    286,419.01x = 429,690.48 × 108,929.38
  4. Step 4: Simplify right side
    286,419.01x = 46,805,917,578.30
  5. Step 5: Solve for x
    x = 46,805,917,578.30/286,419.01
  6. Step 6: Final answer
    x = 163,417.64

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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.