Home / 256,586.76-384,895.94-98,815.36

Finding the Fourth Proportional to 256,586.76, 384,895.94 and 98,815.36

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Solution

The fourth proportional to 256,586.76, 384,895.94 and 98,815.36 is: 148,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,586.76 : 384,895.94 = 98,815.36 : x
  2. Step 2: Convert to fraction form
    256,586.76/384,895.94 = 98,815.36/x
  3. Step 3: Cross multiply
    256,586.76x = 384,895.94 × 98,815.36
  4. Step 4: Simplify right side
    256,586.76x = 38,033,630,873.64
  5. Step 5: Solve for x
    x = 38,033,630,873.64/256,586.76
  6. Step 6: Final answer
    x = 148,229.12

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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.