Home / 205,981.40-308,741.70-117,277.40

Finding the Fourth Proportional to 205,981.40, 308,741.70 and 117,277.40

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Solution

The fourth proportional to 205,981.40, 308,741.70 and 117,277.40 is: 175,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,981.40 : 308,741.70 = 117,277.40 : x
  2. Step 2: Convert to fraction form
    205,981.40/308,741.70 = 117,277.40/x
  3. Step 3: Cross multiply
    205,981.40x = 308,741.70 × 117,277.40
  4. Step 4: Simplify right side
    205,981.40x = 36,208,423,847.58
  5. Step 5: Solve for x
    x = 36,208,423,847.58/205,981.40
  6. Step 6: Final answer
    x = 175,784.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.