Home / 343,530.26-515,330.74-118,890.30

Finding the Fourth Proportional to 343,530.26, 515,330.74 and 118,890.30

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Solution

The fourth proportional to 343,530.26, 515,330.74 and 118,890.30 is: 178,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,530.26 : 515,330.74 = 118,890.30 : x
  2. Step 2: Convert to fraction form
    343,530.26/515,330.74 = 118,890.30/x
  3. Step 3: Cross multiply
    343,530.26x = 515,330.74 × 118,890.30
  4. Step 4: Simplify right side
    343,530.26x = 61,267,826,277.82
  5. Step 5: Solve for x
    x = 61,267,826,277.82/343,530.26
  6. Step 6: Final answer
    x = 178,347.68

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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.