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Finding the Fourth Proportional to 258,366.64, 387,727.08 and 100,595.92

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Solution

The fourth proportional to 258,366.64, 387,727.08 and 100,595.92 is: 150,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,366.64 : 387,727.08 = 100,595.92 : x
  2. Step 2: Convert to fraction form
    258,366.64/387,727.08 = 100,595.92/x
  3. Step 3: Cross multiply
    258,366.64x = 387,727.08 × 100,595.92
  4. Step 4: Simplify right side
    258,366.64x = 39,003,762,321.51
  5. Step 5: Solve for x
    x = 39,003,762,321.51/258,366.64
  6. Step 6: Final answer
    x = 150,962.84

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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.