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Finding the Fourth Proportional to 255,150.96, 382,600.71 and 86,609.76

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Solution

The fourth proportional to 255,150.96, 382,600.71 and 86,609.76 is: 129,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,150.96 : 382,600.71 = 86,609.76 : x
  2. Step 2: Convert to fraction form
    255,150.96/382,600.71 = 86,609.76/x
  3. Step 3: Cross multiply
    255,150.96x = 382,600.71 × 86,609.76
  4. Step 4: Simplify right side
    255,150.96x = 33,136,955,668.93
  5. Step 5: Solve for x
    x = 33,136,955,668.93/255,150.96
  6. Step 6: Final answer
    x = 129,871.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.