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Finding the Fourth Proportional to 258,797.12, 387,573.60 and 147,652.16

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Solution

The fourth proportional to 258,797.12, 387,573.60 and 147,652.16 is: 221,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,797.12 : 387,573.60 = 147,652.16 : x
  2. Step 2: Convert to fraction form
    258,797.12/387,573.60 = 147,652.16/x
  3. Step 3: Cross multiply
    258,797.12x = 387,573.60 × 147,652.16
  4. Step 4: Simplify right side
    258,797.12x = 57,226,079,198.98
  5. Step 5: Solve for x
    x = 57,226,079,198.98/258,797.12
  6. Step 6: Final answer
    x = 221,123.32

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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.