Home / 258,002.10-387,003.15-118,034.10

Finding the Fourth Proportional to 258,002.10, 387,003.15 and 118,034.10

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Solution

The fourth proportional to 258,002.10, 387,003.15 and 118,034.10 is: 177,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,002.10 : 387,003.15 = 118,034.10 : x
  2. Step 2: Convert to fraction form
    258,002.10/387,003.15 = 118,034.10/x
  3. Step 3: Cross multiply
    258,002.10x = 387,003.15 × 118,034.10
  4. Step 4: Simplify right side
    258,002.10x = 45,679,568,507.42
  5. Step 5: Solve for x
    x = 45,679,568,507.42/258,002.10
  6. Step 6: Final answer
    x = 177,051.15

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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.