Home / 290,505.06-400,897.22-163,180.76

Finding the Fourth Proportional to 290,505.06, 400,897.22 and 163,180.76

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Solution

The fourth proportional to 290,505.06, 400,897.22 and 163,180.76 is: 225,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,505.06 : 400,897.22 = 163,180.76 : x
  2. Step 2: Convert to fraction form
    290,505.06/400,897.22 = 163,180.76/x
  3. Step 3: Cross multiply
    290,505.06x = 400,897.22 × 163,180.76
  4. Step 4: Simplify right side
    290,505.06x = 65,418,710,221.10
  5. Step 5: Solve for x
    x = 65,418,710,221.10/290,505.06
  6. Step 6: Final answer
    x = 225,189.57

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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.