Home / 316,134.86-436,272.62-172,904.18

Finding the Fourth Proportional to 316,134.86, 436,272.62 and 172,904.18

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Solution

The fourth proportional to 316,134.86, 436,272.62 and 172,904.18 is: 238,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,134.86 : 436,272.62 = 172,904.18 : x
  2. Step 2: Convert to fraction form
    316,134.86/436,272.62 = 172,904.18/x
  3. Step 3: Cross multiply
    316,134.86x = 436,272.62 × 172,904.18
  4. Step 4: Simplify right side
    316,134.86x = 75,433,356,571.67
  5. Step 5: Solve for x
    x = 75,433,356,571.67/316,134.86
  6. Step 6: Final answer
    x = 238,611.32

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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.