Home / 210,262.35-315,272.33-143,783.02

Finding the Fourth Proportional to 210,262.35, 315,272.33 and 143,783.02

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Solution

The fourth proportional to 210,262.35, 315,272.33 and 143,783.02 is: 215,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,262.35 : 315,272.33 = 143,783.02 : x
  2. Step 2: Convert to fraction form
    210,262.35/315,272.33 = 143,783.02/x
  3. Step 3: Cross multiply
    210,262.35x = 315,272.33 × 143,783.02
  4. Step 4: Simplify right side
    210,262.35x = 45,330,807,729.84
  5. Step 5: Solve for x
    x = 45,330,807,729.84/210,262.35
  6. Step 6: Final answer
    x = 215,591.65

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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.