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Finding the Fourth Proportional to 236,778.94, 355,308.53 and 87,124.32

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Solution

The fourth proportional to 236,778.94, 355,308.53 and 87,124.32 is: 130,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,778.94 : 355,308.53 = 87,124.32 : x
  2. Step 2: Convert to fraction form
    236,778.94/355,308.53 = 87,124.32/x
  3. Step 3: Cross multiply
    236,778.94x = 355,308.53 × 87,124.32
  4. Step 4: Simplify right side
    236,778.94x = 30,956,014,066.45
  5. Step 5: Solve for x
    x = 30,956,014,066.45/236,778.94
  6. Step 6: Final answer
    x = 130,738.04

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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.