Home / 208,775.07-288,108.29-113,279.72

Finding the Fourth Proportional to 208,775.07, 288,108.29 and 113,279.72

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Solution

The fourth proportional to 208,775.07, 288,108.29 and 113,279.72 is: 156,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,775.07 : 288,108.29 = 113,279.72 : x
  2. Step 2: Convert to fraction form
    208,775.07/288,108.29 = 113,279.72/x
  3. Step 3: Cross multiply
    208,775.07x = 288,108.29 × 113,279.72
  4. Step 4: Simplify right side
    208,775.07x = 32,636,825,263.54
  5. Step 5: Solve for x
    x = 32,636,825,263.54/208,775.07
  6. Step 6: Final answer
    x = 156,325.30

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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.