Home / 208,901.23-288,287.18-113,407.93

Finding the Fourth Proportional to 208,901.23, 288,287.18 and 113,407.93

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Solution

The fourth proportional to 208,901.23, 288,287.18 and 113,407.93 is: 156,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,901.23 : 288,287.18 = 113,407.93 : x
  2. Step 2: Convert to fraction form
    208,901.23/288,287.18 = 113,407.93/x
  3. Step 3: Cross multiply
    208,901.23x = 288,287.18 × 113,407.93
  4. Step 4: Simplify right side
    208,901.23x = 32,694,052,329.34
  5. Step 5: Solve for x
    x = 32,694,052,329.34/208,901.23
  6. Step 6: Final answer
    x = 156,504.83

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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.