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Finding the Fourth Proportional to 344,187.16, 474,787.03 and 319,831.54

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Solution

The fourth proportional to 344,187.16, 474,787.03 and 319,831.54 is: 441,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,187.16 : 474,787.03 = 319,831.54 : x
  2. Step 2: Convert to fraction form
    344,187.16/474,787.03 = 319,831.54/x
  3. Step 3: Cross multiply
    344,187.16x = 474,787.03 × 319,831.54
  4. Step 4: Simplify right side
    344,187.16x = 151,851,863,003.83
  5. Step 5: Solve for x
    x = 151,851,863,003.83/344,187.16
  6. Step 6: Final answer
    x = 441,189.80

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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.