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Finding the Fourth Proportional to 256,436.46, 353,895.86 and 154,494.01

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Solution

The fourth proportional to 256,436.46, 353,895.86 and 154,494.01 is: 213,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,436.46 : 353,895.86 = 154,494.01 : x
  2. Step 2: Convert to fraction form
    256,436.46/353,895.86 = 154,494.01/x
  3. Step 3: Cross multiply
    256,436.46x = 353,895.86 × 154,494.01
  4. Step 4: Simplify right side
    256,436.46x = 54,674,790,533.80
  5. Step 5: Solve for x
    x = 54,674,790,533.80/256,436.46
  6. Step 6: Final answer
    x = 213,209.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.