Home / 243,549.09-365,329.89-115,435.53

Finding the Fourth Proportional to 243,549.09, 365,329.89 and 115,435.53

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Solution

The fourth proportional to 243,549.09, 365,329.89 and 115,435.53 is: 173,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,549.09 : 365,329.89 = 115,435.53 : x
  2. Step 2: Convert to fraction form
    243,549.09/365,329.89 = 115,435.53/x
  3. Step 3: Cross multiply
    243,549.09x = 365,329.89 × 115,435.53
  4. Step 4: Simplify right side
    243,549.09x = 42,172,049,476.99
  5. Step 5: Solve for x
    x = 42,172,049,476.99/243,549.09
  6. Step 6: Final answer
    x = 173,156.26

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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.