Home / 316,103.96-436,231.04-180,135

Finding the Fourth Proportional to 316,103.96, 436,231.04 and 180,135

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Solution

The fourth proportional to 316,103.96, 436,231.04 and 180,135 is: 248,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,103.96 : 436,231.04 = 180,135 : x
  2. Step 2: Convert to fraction form
    316,103.96/436,231.04 = 180,135/x
  3. Step 3: Cross multiply
    316,103.96x = 436,231.04 × 180,135
  4. Step 4: Simplify right side
    316,103.96x = 78,580,478,390.40
  5. Step 5: Solve for x
    x = 78,580,478,390.40/316,103.96
  6. Step 6: Final answer
    x = 248,590.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.