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Finding the Fourth Proportional to 343,479.83, 515,093.38 and 118,782.59

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Solution

The fourth proportional to 343,479.83, 515,093.38 and 118,782.59 is: 178,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,479.83 : 515,093.38 = 118,782.59 : x
  2. Step 2: Convert to fraction form
    343,479.83/515,093.38 = 118,782.59/x
  3. Step 3: Cross multiply
    343,479.83x = 515,093.38 × 118,782.59
  4. Step 4: Simplify right side
    343,479.83x = 61,184,125,174.34
  5. Step 5: Solve for x
    x = 61,184,125,174.34/343,479.83
  6. Step 6: Final answer
    x = 178,130.18

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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.