Home / 450,156.31-621,146.71-259,132.79

Finding the Fourth Proportional to 450,156.31, 621,146.71 and 259,132.79

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Solution

The fourth proportional to 450,156.31, 621,146.71 and 259,132.79 is: 357,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,156.31 : 621,146.71 = 259,132.79 : x
  2. Step 2: Convert to fraction form
    450,156.31/621,146.71 = 259,132.79/x
  3. Step 3: Cross multiply
    450,156.31x = 621,146.71 × 259,132.79
  4. Step 4: Simplify right side
    450,156.31x = 160,959,479,961.62
  5. Step 5: Solve for x
    x = 160,959,479,961.62/450,156.31
  6. Step 6: Final answer
    x = 357,563.53

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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.