Home / 209,981.44-289,768.08-114,490

Finding the Fourth Proportional to 209,981.44, 289,768.08 and 114,490

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Solution

The fourth proportional to 209,981.44, 289,768.08 and 114,490 is: 157,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,981.44 : 289,768.08 = 114,490 : x
  2. Step 2: Convert to fraction form
    209,981.44/289,768.08 = 114,490/x
  3. Step 3: Cross multiply
    209,981.44x = 289,768.08 × 114,490
  4. Step 4: Simplify right side
    209,981.44x = 33,175,547,479.20
  5. Step 5: Solve for x
    x = 33,175,547,479.20/209,981.44
  6. Step 6: Final answer
    x = 157,992.76

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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.