Home / 208,708.30-288,018.18-113,215.67

Finding the Fourth Proportional to 208,708.30, 288,018.18 and 113,215.67

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Solution

The fourth proportional to 208,708.30, 288,018.18 and 113,215.67 is: 156,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,708.30 : 288,018.18 = 113,215.67 : x
  2. Step 2: Convert to fraction form
    208,708.30/288,018.18 = 113,215.67/x
  3. Step 3: Cross multiply
    208,708.30x = 288,018.18 × 113,215.67
  4. Step 4: Simplify right side
    208,708.30x = 32,608,172,480.96
  5. Step 5: Solve for x
    x = 32,608,172,480.96/208,708.30
  6. Step 6: Final answer
    x = 156,238.03

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1.5x scale

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.