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Finding the Fourth Proportional to 202,039.70, 302,865.15 and 157,036.10

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Solution

The fourth proportional to 202,039.70, 302,865.15 and 157,036.10 is: 235,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,039.70 : 302,865.15 = 157,036.10 : x
  2. Step 2: Convert to fraction form
    202,039.70/302,865.15 = 157,036.10/x
  3. Step 3: Cross multiply
    202,039.70x = 302,865.15 × 157,036.10
  4. Step 4: Simplify right side
    202,039.70x = 47,560,761,981.92
  5. Step 5: Solve for x
    x = 47,560,761,981.92/202,039.70
  6. Step 6: Final answer
    x = 235,403.05

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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.