Home / 208,929.09-288,319.18-113,439.45

Finding the Fourth Proportional to 208,929.09, 288,319.18 and 113,439.45

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Solution

The fourth proportional to 208,929.09, 288,319.18 and 113,439.45 is: 156,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,929.09 : 288,319.18 = 113,439.45 : x
  2. Step 2: Convert to fraction form
    208,929.09/288,319.18 = 113,439.45/x
  3. Step 3: Cross multiply
    208,929.09x = 288,319.18 × 113,439.45
  4. Step 4: Simplify right side
    208,929.09x = 32,706,769,203.65
  5. Step 5: Solve for x
    x = 32,706,769,203.65/208,929.09
  6. Step 6: Final answer
    x = 156,544.83

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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.