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Finding the Fourth Proportional to 319,012.32, 477,667.44 and 252,588

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Solution

The fourth proportional to 319,012.32, 477,667.44 and 252,588 is: 378,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,012.32 : 477,667.44 = 252,588 : x
  2. Step 2: Convert to fraction form
    319,012.32/477,667.44 = 252,588/x
  3. Step 3: Cross multiply
    319,012.32x = 477,667.44 × 252,588
  4. Step 4: Simplify right side
    319,012.32x = 120,653,063,334.72
  5. Step 5: Solve for x
    x = 120,653,063,334.72/319,012.32
  6. Step 6: Final answer
    x = 378,208.16

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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.