Home / 280,961.20-421,074.06-245,332.72

Finding the Fourth Proportional to 280,961.20, 421,074.06 and 245,332.72

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Solution

The fourth proportional to 280,961.20, 421,074.06 and 245,332.72 is: 367,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,961.20 : 421,074.06 = 245,332.72 : x
  2. Step 2: Convert to fraction form
    280,961.20/421,074.06 = 245,332.72/x
  3. Step 3: Cross multiply
    280,961.20x = 421,074.06 × 245,332.72
  4. Step 4: Simplify right side
    280,961.20x = 103,303,244,461.24
  5. Step 5: Solve for x
    x = 103,303,244,461.24/280,961.20
  6. Step 6: Final answer
    x = 367,677.97

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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.