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Finding the Fourth Proportional to 445,776.77, 668,831.61 and 179,612.79

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Solution

The fourth proportional to 445,776.77, 668,831.61 and 179,612.79 is: 269,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,776.77 : 668,831.61 = 179,612.79 : x
  2. Step 2: Convert to fraction form
    445,776.77/668,831.61 = 179,612.79/x
  3. Step 3: Cross multiply
    445,776.77x = 668,831.61 × 179,612.79
  4. Step 4: Simplify right side
    445,776.77x = 120,130,711,512.29
  5. Step 5: Solve for x
    x = 120,130,711,512.29/445,776.77
  6. Step 6: Final answer
    x = 269,486.26

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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.