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Finding the Fourth Proportional to 373,967.50, 515,813.24 and 253,055.56

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Solution

The fourth proportional to 373,967.50, 515,813.24 and 253,055.56 is: 349,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,967.50 : 515,813.24 = 253,055.56 : x
  2. Step 2: Convert to fraction form
    373,967.50/515,813.24 = 253,055.56/x
  3. Step 3: Cross multiply
    373,967.50x = 515,813.24 × 253,055.56
  4. Step 4: Simplify right side
    373,967.50x = 130,529,408,303.61
  5. Step 5: Solve for x
    x = 130,529,408,303.61/373,967.50
  6. Step 6: Final answer
    x = 349,039.44

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Why These Related Problems?

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