Home / 315,039.15-434,779.80-179,115.69

Finding the Fourth Proportional to 315,039.15, 434,779.80 and 179,115.69

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Solution

The fourth proportional to 315,039.15, 434,779.80 and 179,115.69 is: 247,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,039.15 : 434,779.80 = 179,115.69 : x
  2. Step 2: Convert to fraction form
    315,039.15/434,779.80 = 179,115.69/x
  3. Step 3: Cross multiply
    315,039.15x = 434,779.80 × 179,115.69
  4. Step 4: Simplify right side
    315,039.15x = 77,875,883,875.06
  5. Step 5: Solve for x
    x = 77,875,883,875.06/315,039.15
  6. Step 6: Final answer
    x = 247,194.31

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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.