Home / 290,320.45-400,631.92-163,001.41

Finding the Fourth Proportional to 290,320.45, 400,631.92 and 163,001.41

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Solution

The fourth proportional to 290,320.45, 400,631.92 and 163,001.41 is: 224,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,320.45 : 400,631.92 = 163,001.41 : x
  2. Step 2: Convert to fraction form
    290,320.45/400,631.92 = 163,001.41/x
  3. Step 3: Cross multiply
    290,320.45x = 400,631.92 × 163,001.41
  4. Step 4: Simplify right side
    290,320.45x = 65,303,567,851.01
  5. Step 5: Solve for x
    x = 65,303,567,851.01/290,320.45
  6. Step 6: Final answer
    x = 224,936.16

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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.