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Finding the Fourth Proportional to 255,031.68, 351,918.72 and 141,847.68

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Solution

The fourth proportional to 255,031.68, 351,918.72 and 141,847.68 is: 195,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,031.68 : 351,918.72 = 141,847.68 : x
  2. Step 2: Convert to fraction form
    255,031.68/351,918.72 = 141,847.68/x
  3. Step 3: Cross multiply
    255,031.68x = 351,918.72 × 141,847.68
  4. Step 4: Simplify right side
    255,031.68x = 49,918,853,980.57
  5. Step 5: Solve for x
    x = 49,918,853,980.57/255,031.68
  6. Step 6: Final answer
    x = 195,735.89

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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.