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Finding the Fourth Proportional to 258,858.74, 357,139.44 and 151,352.66

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Solution

The fourth proportional to 258,858.74, 357,139.44 and 151,352.66 is: 208,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,858.74 : 357,139.44 = 151,352.66 : x
  2. Step 2: Convert to fraction form
    258,858.74/357,139.44 = 151,352.66/x
  3. Step 3: Cross multiply
    258,858.74x = 357,139.44 × 151,352.66
  4. Step 4: Simplify right side
    258,858.74x = 54,054,004,234.91
  5. Step 5: Solve for x
    x = 54,054,004,234.91/258,858.74
  6. Step 6: Final answer
    x = 208,816.61

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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.