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Finding the Fourth Proportional to 450,203.70, 621,334.69 and 259,254.30

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Solution

The fourth proportional to 450,203.70, 621,334.69 and 259,254.30 is: 357,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,203.70 : 621,334.69 = 259,254.30 : x
  2. Step 2: Convert to fraction form
    450,203.70/621,334.69 = 259,254.30/x
  3. Step 3: Cross multiply
    450,203.70x = 621,334.69 × 259,254.30
  4. Step 4: Simplify right side
    450,203.70x = 161,083,690,121.67
  5. Step 5: Solve for x
    x = 161,083,690,121.67/450,203.70
  6. Step 6: Final answer
    x = 357,801.79

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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.