Home / 208,830.69-288,178.63-113,335.34

Finding the Fourth Proportional to 208,830.69, 288,178.63 and 113,335.34

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Solution

The fourth proportional to 208,830.69, 288,178.63 and 113,335.34 is: 156,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,830.69 : 288,178.63 = 113,335.34 : x
  2. Step 2: Convert to fraction form
    208,830.69/288,178.63 = 113,335.34/x
  3. Step 3: Cross multiply
    208,830.69x = 288,178.63 × 113,335.34
  4. Step 4: Simplify right side
    208,830.69x = 32,660,821,287.55
  5. Step 5: Solve for x
    x = 32,660,821,287.55/208,830.69
  6. Step 6: Final answer
    x = 156,398.57

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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.