Home / 351,081.12-525,396.96-287,162.40

Finding the Fourth Proportional to 351,081.12, 525,396.96 and 287,162.40

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Solution

The fourth proportional to 351,081.12, 525,396.96 and 287,162.40 is: 429,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,081.12 : 525,396.96 = 287,162.40 : x
  2. Step 2: Convert to fraction form
    351,081.12/525,396.96 = 287,162.40/x
  3. Step 3: Cross multiply
    351,081.12x = 525,396.96 × 287,162.40
  4. Step 4: Simplify right side
    351,081.12x = 150,874,251,986.30
  5. Step 5: Solve for x
    x = 150,874,251,986.30/351,081.12
  6. Step 6: Final answer
    x = 429,741.86

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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.