Home / 328,788.09-493,210.10-115,537.60

Finding the Fourth Proportional to 328,788.09, 493,210.10 and 115,537.60

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Solution

The fourth proportional to 328,788.09, 493,210.10 and 115,537.60 is: 173,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,788.09 : 493,210.10 = 115,537.60 : x
  2. Step 2: Convert to fraction form
    328,788.09/493,210.10 = 115,537.60/x
  3. Step 3: Cross multiply
    328,788.09x = 493,210.10 × 115,537.60
  4. Step 4: Simplify right side
    328,788.09x = 56,984,311,249.76
  5. Step 5: Solve for x
    x = 56,984,311,249.76/328,788.09
  6. Step 6: Final answer
    x = 173,316.23

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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.