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Finding the Fourth Proportional to 259,387.21, 357,954.98 and 144,673.28

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Solution

The fourth proportional to 259,387.21, 357,954.98 and 144,673.28 is: 199,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,387.21 : 357,954.98 = 144,673.28 : x
  2. Step 2: Convert to fraction form
    259,387.21/357,954.98 = 144,673.28/x
  3. Step 3: Cross multiply
    259,387.21x = 357,954.98 × 144,673.28
  4. Step 4: Simplify right side
    259,387.21x = 51,786,521,048.93
  5. Step 5: Solve for x
    x = 51,786,521,048.93/259,387.21
  6. Step 6: Final answer
    x = 199,649.48

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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.