Home / 324,530.15-486,801.49-99,890.35

Finding the Fourth Proportional to 324,530.15, 486,801.49 and 99,890.35

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Solution

The fourth proportional to 324,530.15, 486,801.49 and 99,890.35 is: 149,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,530.15 : 486,801.49 = 99,890.35 : x
  2. Step 2: Convert to fraction form
    324,530.15/486,801.49 = 99,890.35/x
  3. Step 3: Cross multiply
    324,530.15x = 486,801.49 × 99,890.35
  4. Step 4: Simplify right side
    324,530.15x = 48,626,771,216.62
  5. Step 5: Solve for x
    x = 48,626,771,216.62/324,530.15
  6. Step 6: Final answer
    x = 149,837.45

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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.