Home / 209,000.34-288,539.97-137,587.95

Finding the Fourth Proportional to 209,000.34, 288,539.97 and 137,587.95

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Solution

The fourth proportional to 209,000.34, 288,539.97 and 137,587.95 is: 189,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,000.34 : 288,539.97 = 137,587.95 : x
  2. Step 2: Convert to fraction form
    209,000.34/288,539.97 = 137,587.95/x
  3. Step 3: Cross multiply
    209,000.34x = 288,539.97 × 137,587.95
  4. Step 4: Simplify right side
    209,000.34x = 39,699,622,965.36
  5. Step 5: Solve for x
    x = 39,699,622,965.36/209,000.34
  6. Step 6: Final answer
    x = 189,950.04

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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.