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Finding the Fourth Proportional to 315,086.84, 434,802.76 and 179,101.92

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Solution

The fourth proportional to 315,086.84, 434,802.76 and 179,101.92 is: 247,150.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,086.84 : 434,802.76 = 179,101.92 : x
  2. Step 2: Convert to fraction form
    315,086.84/434,802.76 = 179,101.92/x
  3. Step 3: Cross multiply
    315,086.84x = 434,802.76 × 179,101.92
  4. Step 4: Simplify right side
    315,086.84x = 77,874,009,137.30
  5. Step 5: Solve for x
    x = 77,874,009,137.30/315,086.84
  6. Step 6: Final answer
    x = 247,150.94

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1.5x scale

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.