Home / 317,680.56-438,406.83-172,492.52

Finding the Fourth Proportional to 317,680.56, 438,406.83 and 172,492.52

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Solution

The fourth proportional to 317,680.56, 438,406.83 and 172,492.52 is: 238,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,680.56 : 438,406.83 = 172,492.52 : x
  2. Step 2: Convert to fraction form
    317,680.56/438,406.83 = 172,492.52/x
  3. Step 3: Cross multiply
    317,680.56x = 438,406.83 × 172,492.52
  4. Step 4: Simplify right side
    317,680.56x = 75,621,896,699.88
  5. Step 5: Solve for x
    x = 75,621,896,699.88/317,680.56
  6. Step 6: Final answer
    x = 238,043.83

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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.