Home / 280,930.50-421,396.16-114,718.50

Finding the Fourth Proportional to 280,930.50, 421,396.16 and 114,718.50

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Solution

The fourth proportional to 280,930.50, 421,396.16 and 114,718.50 is: 172,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,930.50 : 421,396.16 = 114,718.50 : x
  2. Step 2: Convert to fraction form
    280,930.50/421,396.16 = 114,718.50/x
  3. Step 3: Cross multiply
    280,930.50x = 421,396.16 × 114,718.50
  4. Step 4: Simplify right side
    280,930.50x = 48,341,934,807.37
  5. Step 5: Solve for x
    x = 48,341,934,807.37/280,930.50
  6. Step 6: Final answer
    x = 172,077.92

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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.