Home / 409,734.45-614,459.52-143,489.07

Finding the Fourth Proportional to 409,734.45, 614,459.52 and 143,489.07

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Solution

The fourth proportional to 409,734.45, 614,459.52 and 143,489.07 is: 215,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,734.45 : 614,459.52 = 143,489.07 : x
  2. Step 2: Convert to fraction form
    409,734.45/614,459.52 = 143,489.07/x
  3. Step 3: Cross multiply
    409,734.45x = 614,459.52 × 143,489.07
  4. Step 4: Simplify right side
    409,734.45x = 88,168,225,077.45
  5. Step 5: Solve for x
    x = 88,168,225,077.45/409,734.45
  6. Step 6: Final answer
    x = 215,183.82

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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.