Home / 317,814.82-438,587.67-172,622.01

Finding the Fourth Proportional to 317,814.82, 438,587.67 and 172,622.01

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Solution

The fourth proportional to 317,814.82, 438,587.67 and 172,622.01 is: 238,220.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,814.82 : 438,587.67 = 172,622.01 : x
  2. Step 2: Convert to fraction form
    317,814.82/438,587.67 = 172,622.01/x
  3. Step 3: Cross multiply
    317,814.82x = 438,587.67 × 172,622.01
  4. Step 4: Simplify right side
    317,814.82x = 75,709,885,156.62
  5. Step 5: Solve for x
    x = 75,709,885,156.62/317,814.82
  6. Step 6: Final answer
    x = 238,220.12

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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.