Home / 285,144.08-393,457.64-157,819.37

Finding the Fourth Proportional to 285,144.08, 393,457.64 and 157,819.37

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Solution

The fourth proportional to 285,144.08, 393,457.64 and 157,819.37 is: 217,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,144.08 : 393,457.64 = 157,819.37 : x
  2. Step 2: Convert to fraction form
    285,144.08/393,457.64 = 157,819.37/x
  3. Step 3: Cross multiply
    285,144.08x = 393,457.64 × 157,819.37
  4. Step 4: Simplify right side
    285,144.08x = 62,095,234,110.10
  5. Step 5: Solve for x
    x = 62,095,234,110.10/285,144.08
  6. Step 6: Final answer
    x = 217,767.93

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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.