Home / 256,832.48-384,927.84-123,688

Finding the Fourth Proportional to 256,832.48, 384,927.84 and 123,688

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Solution

The fourth proportional to 256,832.48, 384,927.84 and 123,688 is: 185,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,832.48 : 384,927.84 = 123,688 : x
  2. Step 2: Convert to fraction form
    256,832.48/384,927.84 = 123,688/x
  3. Step 3: Cross multiply
    256,832.48x = 384,927.84 × 123,688
  4. Step 4: Simplify right side
    256,832.48x = 47,610,954,673.92
  5. Step 5: Solve for x
    x = 47,610,954,673.92/256,832.48
  6. Step 6: Final answer
    x = 185,377.47

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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.