Home / 280,630.46-421,111.76-103,262.02

Finding the Fourth Proportional to 280,630.46, 421,111.76 and 103,262.02

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Solution

The fourth proportional to 280,630.46, 421,111.76 and 103,262.02 is: 154,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,630.46 : 421,111.76 = 103,262.02 : x
  2. Step 2: Convert to fraction form
    280,630.46/421,111.76 = 103,262.02/x
  3. Step 3: Cross multiply
    280,630.46x = 421,111.76 × 103,262.02
  4. Step 4: Simplify right side
    280,630.46x = 43,484,850,983.36
  5. Step 5: Solve for x
    x = 43,484,850,983.36/280,630.46
  6. Step 6: Final answer
    x = 154,954.14

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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.