Home / 256,930.17-385,505.46-99,269.34

Finding the Fourth Proportional to 256,930.17, 385,505.46 and 99,269.34

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Solution

The fourth proportional to 256,930.17, 385,505.46 and 99,269.34 is: 148,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,930.17 : 385,505.46 = 99,269.34 : x
  2. Step 2: Convert to fraction form
    256,930.17/385,505.46 = 99,269.34/x
  3. Step 3: Cross multiply
    256,930.17x = 385,505.46 × 99,269.34
  4. Step 4: Simplify right side
    256,930.17x = 38,268,872,580.60
  5. Step 5: Solve for x
    x = 38,268,872,580.60/256,930.17
  6. Step 6: Final answer
    x = 148,946.59

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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.