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Finding the Fourth Proportional to 280,852.54, 421,237.27 and 103,318.02

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Solution

The fourth proportional to 280,852.54, 421,237.27 and 103,318.02 is: 154,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,852.54 : 421,237.27 = 103,318.02 : x
  2. Step 2: Convert to fraction form
    280,852.54/421,237.27 = 103,318.02/x
  3. Step 3: Cross multiply
    280,852.54x = 421,237.27 × 103,318.02
  4. Step 4: Simplify right side
    280,852.54x = 43,521,402,395.39
  5. Step 5: Solve for x
    x = 43,521,402,395.39/280,852.54
  6. Step 6: Final answer
    x = 154,961.76

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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.