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Finding the Fourth Proportional to 258,187.01, 387,346.21 and 151,661.05

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Solution

The fourth proportional to 258,187.01, 387,346.21 and 151,661.05 is: 227,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,187.01 : 387,346.21 = 151,661.05 : x
  2. Step 2: Convert to fraction form
    258,187.01/387,346.21 = 151,661.05/x
  3. Step 3: Cross multiply
    258,187.01x = 387,346.21 × 151,661.05
  4. Step 4: Simplify right side
    258,187.01x = 58,745,332,096.26
  5. Step 5: Solve for x
    x = 58,745,332,096.26/258,187.01
  6. Step 6: Final answer
    x = 227,530.16

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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.