Home / 315,175.15-434,962.26-179,221.72

Finding the Fourth Proportional to 315,175.15, 434,962.26 and 179,221.72

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Solution

The fourth proportional to 315,175.15, 434,962.26 and 179,221.72 is: 247,337.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,175.15 : 434,962.26 = 179,221.72 : x
  2. Step 2: Convert to fraction form
    315,175.15/434,962.26 = 179,221.72/x
  3. Step 3: Cross multiply
    315,175.15x = 434,962.26 × 179,221.72
  4. Step 4: Simplify right side
    315,175.15x = 77,954,684,372.29
  5. Step 5: Solve for x
    x = 77,954,684,372.29/315,175.15
  6. Step 6: Final answer
    x = 247,337.66

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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.