Home / 385,311.20-577,707.60-174,840.80

Finding the Fourth Proportional to 385,311.20, 577,707.60 and 174,840.80

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Solution

The fourth proportional to 385,311.20, 577,707.60 and 174,840.80 is: 262,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,311.20 : 577,707.60 = 174,840.80 : x
  2. Step 2: Convert to fraction form
    385,311.20/577,707.60 = 174,840.80/x
  3. Step 3: Cross multiply
    385,311.20x = 577,707.60 × 174,840.80
  4. Step 4: Simplify right side
    385,311.20x = 101,006,858,950.08
  5. Step 5: Solve for x
    x = 101,006,858,950.08/385,311.20
  6. Step 6: Final answer
    x = 262,143.58

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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.