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Finding the Fourth Proportional to 450,188.06, 621,279.45 and 259,262.96

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Solution

The fourth proportional to 450,188.06, 621,279.45 and 259,262.96 is: 357,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,188.06 : 621,279.45 = 259,262.96 : x
  2. Step 2: Convert to fraction form
    450,188.06/621,279.45 = 259,262.96/x
  3. Step 3: Cross multiply
    450,188.06x = 621,279.45 × 259,262.96
  4. Step 4: Simplify right side
    450,188.06x = 161,074,746,087.78
  5. Step 5: Solve for x
    x = 161,074,746,087.78/450,188.06
  6. Step 6: Final answer
    x = 357,794.36

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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.