Home / 385,365.20-577,961.40-253,173.20

Finding the Fourth Proportional to 385,365.20, 577,961.40 and 253,173.20

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Solution

The fourth proportional to 385,365.20, 577,961.40 and 253,173.20 is: 379,703.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,365.20 : 577,961.40 = 253,173.20 : x
  2. Step 2: Convert to fraction form
    385,365.20/577,961.40 = 253,173.20/x
  3. Step 3: Cross multiply
    385,365.20x = 577,961.40 × 253,173.20
  4. Step 4: Simplify right side
    385,365.20x = 146,324,337,114.48
  5. Step 5: Solve for x
    x = 146,324,337,114.48/385,365.20
  6. Step 6: Final answer
    x = 379,703.04

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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.