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Finding the Fourth Proportional to 385,458.40, 578,085.54 and 175,049.56

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Solution

The fourth proportional to 385,458.40, 578,085.54 and 175,049.56 is: 262,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,458.40 : 578,085.54 = 175,049.56 : x
  2. Step 2: Convert to fraction form
    385,458.40/578,085.54 = 175,049.56/x
  3. Step 3: Cross multiply
    385,458.40x = 578,085.54 × 175,049.56
  4. Step 4: Simplify right side
    385,458.40x = 101,193,619,419.36
  5. Step 5: Solve for x
    x = 101,193,619,419.36/385,458.40
  6. Step 6: Final answer
    x = 262,527.99

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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.