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Finding the Fourth Proportional to 450,157.31, 621,148.09 and 259,133.79

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Solution

The fourth proportional to 450,157.31, 621,148.09 and 259,133.79 is: 357,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,157.31 : 621,148.09 = 259,133.79 : x
  2. Step 2: Convert to fraction form
    450,157.31/621,148.09 = 259,133.79/x
  3. Step 3: Cross multiply
    450,157.31x = 621,148.09 × 259,133.79
  4. Step 4: Simplify right side
    450,157.31x = 160,960,458,712.96
  5. Step 5: Solve for x
    x = 160,960,458,712.96/450,157.31
  6. Step 6: Final answer
    x = 357,564.91

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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.