Home / 480,101.07-720,188.34-143,115.96

Finding the Fourth Proportional to 480,101.07, 720,188.34 and 143,115.96

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Solution

The fourth proportional to 480,101.07, 720,188.34 and 143,115.96 is: 214,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,101.07 : 720,188.34 = 143,115.96 : x
  2. Step 2: Convert to fraction form
    480,101.07/720,188.34 = 143,115.96/x
  3. Step 3: Cross multiply
    480,101.07x = 720,188.34 × 143,115.96
  4. Step 4: Simplify right side
    480,101.07x = 103,070,445,659.91
  5. Step 5: Solve for x
    x = 103,070,445,659.91/480,101.07
  6. Step 6: Final answer
    x = 214,684.89

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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.