Home / 385,200.55-577,687.83-145,141.26

Finding the Fourth Proportional to 385,200.55, 577,687.83 and 145,141.26

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Solution

The fourth proportional to 385,200.55, 577,687.83 and 145,141.26 is: 217,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,200.55 : 577,687.83 = 145,141.26 : x
  2. Step 2: Convert to fraction form
    385,200.55/577,687.83 = 145,141.26/x
  3. Step 3: Cross multiply
    385,200.55x = 577,687.83 × 145,141.26
  4. Step 4: Simplify right side
    385,200.55x = 83,846,339,532.87
  5. Step 5: Solve for x
    x = 83,846,339,532.87/385,200.55
  6. Step 6: Final answer
    x = 217,669.31

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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.