Home / 258,666.12-356,905.68-151,215.30

Finding the Fourth Proportional to 258,666.12, 356,905.68 and 151,215.30

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Solution

The fourth proportional to 258,666.12, 356,905.68 and 151,215.30 is: 208,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,666.12 : 356,905.68 = 151,215.30 : x
  2. Step 2: Convert to fraction form
    258,666.12/356,905.68 = 151,215.30/x
  3. Step 3: Cross multiply
    258,666.12x = 356,905.68 × 151,215.30
  4. Step 4: Simplify right side
    258,666.12x = 53,969,599,472.90
  5. Step 5: Solve for x
    x = 53,969,599,472.90/258,666.12
  6. Step 6: Final answer
    x = 208,645.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.