Home / 258,176.30-387,416.01-108,405.07

Finding the Fourth Proportional to 258,176.30, 387,416.01 and 108,405.07

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Solution

The fourth proportional to 258,176.30, 387,416.01 and 108,405.07 is: 162,671.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,176.30 : 387,416.01 = 108,405.07 : x
  2. Step 2: Convert to fraction form
    258,176.30/387,416.01 = 108,405.07/x
  3. Step 3: Cross multiply
    258,176.30x = 387,416.01 × 108,405.07
  4. Step 4: Simplify right side
    258,176.30x = 41,997,859,683.17
  5. Step 5: Solve for x
    x = 41,997,859,683.17/258,176.30
  6. Step 6: Final answer
    x = 162,671.24

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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.