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Finding the Fourth Proportional to 317,460.84, 438,066.99 and 188,377.04

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Solution

The fourth proportional to 317,460.84, 438,066.99 and 188,377.04 is: 259,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,460.84 : 438,066.99 = 188,377.04 : x
  2. Step 2: Convert to fraction form
    317,460.84/438,066.99 = 188,377.04/x
  3. Step 3: Cross multiply
    317,460.84x = 438,066.99 × 188,377.04
  4. Step 4: Simplify right side
    317,460.84x = 82,521,760,707.57
  5. Step 5: Solve for x
    x = 82,521,760,707.57/317,460.84
  6. Step 6: Final answer
    x = 259,943.12

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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.