Home / 256,834.08-385,212.96-99,042.84

Finding the Fourth Proportional to 256,834.08, 385,212.96 and 99,042.84

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Solution

The fourth proportional to 256,834.08, 385,212.96 and 99,042.84 is: 148,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,834.08 : 385,212.96 = 99,042.84 : x
  2. Step 2: Convert to fraction form
    256,834.08/385,212.96 = 99,042.84/x
  3. Step 3: Cross multiply
    256,834.08x = 385,212.96 × 99,042.84
  4. Step 4: Simplify right side
    256,834.08x = 38,152,585,563.21
  5. Step 5: Solve for x
    x = 38,152,585,563.21/256,834.08
  6. Step 6: Final answer
    x = 148,549.54

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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.