Home / 315,099.11-434,761.95-179,122.28

Finding the Fourth Proportional to 315,099.11, 434,761.95 and 179,122.28

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Solution

The fourth proportional to 315,099.11, 434,761.95 and 179,122.28 is: 247,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,099.11 : 434,761.95 = 179,122.28 : x
  2. Step 2: Convert to fraction form
    315,099.11/434,761.95 = 179,122.28/x
  3. Step 3: Cross multiply
    315,099.11x = 434,761.95 × 179,122.28
  4. Step 4: Simplify right side
    315,099.11x = 77,875,550,845.63
  5. Step 5: Solve for x
    x = 77,875,550,845.63/315,099.11
  6. Step 6: Final answer
    x = 247,146.21

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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.