Home / 208,838.57-288,189.91-113,343.35

Finding the Fourth Proportional to 208,838.57, 288,189.91 and 113,343.35

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Solution

The fourth proportional to 208,838.57, 288,189.91 and 113,343.35 is: 156,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,838.57 : 288,189.91 = 113,343.35 : x
  2. Step 2: Convert to fraction form
    208,838.57/288,189.91 = 113,343.35/x
  3. Step 3: Cross multiply
    208,838.57x = 288,189.91 × 113,343.35
  4. Step 4: Simplify right side
    208,838.57x = 32,664,409,835.60
  5. Step 5: Solve for x
    x = 32,664,409,835.60/208,838.57
  6. Step 6: Final answer
    x = 156,409.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.