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Finding the Fourth Proportional to 258,002.60, 387,003.90 and 118,034.60

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Solution

The fourth proportional to 258,002.60, 387,003.90 and 118,034.60 is: 177,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,002.60 : 387,003.90 = 118,034.60 : x
  2. Step 2: Convert to fraction form
    258,002.60/387,003.90 = 118,034.60/x
  3. Step 3: Cross multiply
    258,002.60x = 387,003.90 × 118,034.60
  4. Step 4: Simplify right side
    258,002.60x = 45,679,850,534.94
  5. Step 5: Solve for x
    x = 45,679,850,534.94/258,002.60
  6. Step 6: Final answer
    x = 177,051.90

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1.5x scale

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.