Home / 213,831.80-320,747.70-164,065.40

Finding the Fourth Proportional to 213,831.80, 320,747.70 and 164,065.40

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Solution

The fourth proportional to 213,831.80, 320,747.70 and 164,065.40 is: 246,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,831.80 : 320,747.70 = 164,065.40 : x
  2. Step 2: Convert to fraction form
    213,831.80/320,747.70 = 164,065.40/x
  3. Step 3: Cross multiply
    213,831.80x = 320,747.70 × 164,065.40
  4. Step 4: Simplify right side
    213,831.80x = 52,623,599,699.58
  5. Step 5: Solve for x
    x = 52,623,599,699.58/213,831.80
  6. Step 6: Final answer
    x = 246,098.10

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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.