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Finding the Fourth Proportional to 258,889.96, 357,245.40 and 144,159.94

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Solution

The fourth proportional to 258,889.96, 357,245.40 and 144,159.94 is: 198,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,889.96 : 357,245.40 = 144,159.94 : x
  2. Step 2: Convert to fraction form
    258,889.96/357,245.40 = 144,159.94/x
  3. Step 3: Cross multiply
    258,889.96x = 357,245.40 × 144,159.94
  4. Step 4: Simplify right side
    258,889.96x = 51,500,475,429.28
  5. Step 5: Solve for x
    x = 51,500,475,429.28/258,889.96
  6. Step 6: Final answer
    x = 198,928.05

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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.