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Finding the Fourth Proportional to 236,779.54, 355,309.43 and 87,124.92

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Solution

The fourth proportional to 236,779.54, 355,309.43 and 87,124.92 is: 130,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,779.54 : 355,309.43 = 87,124.92 : x
  2. Step 2: Convert to fraction form
    236,779.54/355,309.43 = 87,124.92/x
  3. Step 3: Cross multiply
    236,779.54x = 355,309.43 × 87,124.92
  4. Step 4: Simplify right side
    236,779.54x = 30,956,303,451.82
  5. Step 5: Solve for x
    x = 30,956,303,451.82/236,779.54
  6. Step 6: Final answer
    x = 130,738.93

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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.