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Finding the Fourth Proportional to 316,094.50, 436,213.86 and 172,851.47

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Solution

The fourth proportional to 316,094.50, 436,213.86 and 172,851.47 is: 238,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,094.50 : 436,213.86 = 172,851.47 : x
  2. Step 2: Convert to fraction form
    316,094.50/436,213.86 = 172,851.47/x
  3. Step 3: Cross multiply
    316,094.50x = 436,213.86 × 172,851.47
  4. Step 4: Simplify right side
    316,094.50x = 75,400,205,741.91
  5. Step 5: Solve for x
    x = 75,400,205,741.91/316,094.50
  6. Step 6: Final answer
    x = 238,536.91

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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.