Home / 290,981.35-436,172.68-157,579.82

Finding the Fourth Proportional to 290,981.35, 436,172.68 and 157,579.82

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Solution

The fourth proportional to 290,981.35, 436,172.68 and 157,579.82 is: 236,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,981.35 : 436,172.68 = 157,579.82 : x
  2. Step 2: Convert to fraction form
    290,981.35/436,172.68 = 157,579.82/x
  3. Step 3: Cross multiply
    290,981.35x = 436,172.68 × 157,579.82
  4. Step 4: Simplify right side
    290,981.35x = 68,732,012,403.32
  5. Step 5: Solve for x
    x = 68,732,012,403.32/290,981.35
  6. Step 6: Final answer
    x = 236,207.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.