Home / 208,801.09-288,146.26-113,307.76

Finding the Fourth Proportional to 208,801.09, 288,146.26 and 113,307.76

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Solution

The fourth proportional to 208,801.09, 288,146.26 and 113,307.76 is: 156,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,801.09 : 288,146.26 = 113,307.76 : x
  2. Step 2: Convert to fraction form
    208,801.09/288,146.26 = 113,307.76/x
  3. Step 3: Cross multiply
    208,801.09x = 288,146.26 × 113,307.76
  4. Step 4: Simplify right side
    208,801.09x = 32,649,207,774.80
  5. Step 5: Solve for x
    x = 32,649,207,774.80/208,801.09
  6. Step 6: Final answer
    x = 156,365.12

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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.