Home / 287,214.59-429,621.89-201,819.47

Finding the Fourth Proportional to 287,214.59, 429,621.89 and 201,819.47

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Solution

The fourth proportional to 287,214.59, 429,621.89 and 201,819.47 is: 301,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,214.59 : 429,621.89 = 201,819.47 : x
  2. Step 2: Convert to fraction form
    287,214.59/429,621.89 = 201,819.47/x
  3. Step 3: Cross multiply
    287,214.59x = 429,621.89 × 201,819.47
  4. Step 4: Simplify right side
    287,214.59x = 86,706,059,992.09
  5. Step 5: Solve for x
    x = 86,706,059,992.09/287,214.59
  6. Step 6: Final answer
    x = 301,885.99

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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.