Home / 208,749.13-288,071.21-113,255.13

Finding the Fourth Proportional to 208,749.13, 288,071.21 and 113,255.13

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Solution

The fourth proportional to 208,749.13, 288,071.21 and 113,255.13 is: 156,290.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,749.13 : 288,071.21 = 113,255.13 : x
  2. Step 2: Convert to fraction form
    208,749.13/288,071.21 = 113,255.13/x
  3. Step 3: Cross multiply
    208,749.13x = 288,071.21 × 113,255.13
  4. Step 4: Simplify right side
    208,749.13x = 32,625,542,337.81
  5. Step 5: Solve for x
    x = 32,625,542,337.81/208,749.13
  6. Step 6: Final answer
    x = 156,290.67

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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.