Home / 328,148.77-492,012.96-138,557.74

Finding the Fourth Proportional to 328,148.77, 492,012.96 and 138,557.74

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Solution

The fourth proportional to 328,148.77, 492,012.96 and 138,557.74 is: 207,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,148.77 : 492,012.96 = 138,557.74 : x
  2. Step 2: Convert to fraction form
    328,148.77/492,012.96 = 138,557.74/x
  3. Step 3: Cross multiply
    328,148.77x = 492,012.96 × 138,557.74
  4. Step 4: Simplify right side
    328,148.77x = 68,172,203,788.31
  5. Step 5: Solve for x
    x = 68,172,203,788.31/328,148.77
  6. Step 6: Final answer
    x = 207,747.86

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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.