Home / 208,985.16-288,402.96-118,338.75

Finding the Fourth Proportional to 208,985.16, 288,402.96 and 118,338.75

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Solution

The fourth proportional to 208,985.16, 288,402.96 and 118,338.75 is: 163,309.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,985.16 : 288,402.96 = 118,338.75 : x
  2. Step 2: Convert to fraction form
    208,985.16/288,402.96 = 118,338.75/x
  3. Step 3: Cross multiply
    208,985.16x = 288,402.96 × 118,338.75
  4. Step 4: Simplify right side
    208,985.16x = 34,129,245,782.70
  5. Step 5: Solve for x
    x = 34,129,245,782.70/208,985.16
  6. Step 6: Final answer
    x = 163,309.42

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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.