Home / 208,739.88-288,061.65-113,247.36

Finding the Fourth Proportional to 208,739.88, 288,061.65 and 113,247.36

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Solution

The fourth proportional to 208,739.88, 288,061.65 and 113,247.36 is: 156,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,739.88 : 288,061.65 = 113,247.36 : x
  2. Step 2: Convert to fraction form
    208,739.88/288,061.65 = 113,247.36/x
  3. Step 3: Cross multiply
    208,739.88x = 288,061.65 × 113,247.36
  4. Step 4: Simplify right side
    208,739.88x = 32,622,221,379.74
  5. Step 5: Solve for x
    x = 32,622,221,379.74/208,739.88
  6. Step 6: Final answer
    x = 156,281.69

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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.