Home / 290,190.12-400,501.54-162,872.76

Finding the Fourth Proportional to 290,190.12, 400,501.54 and 162,872.76

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Solution

The fourth proportional to 290,190.12, 400,501.54 and 162,872.76 is: 224,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,190.12 : 400,501.54 = 162,872.76 : x
  2. Step 2: Convert to fraction form
    290,190.12/400,501.54 = 162,872.76/x
  3. Step 3: Cross multiply
    290,190.12x = 400,501.54 × 162,872.76
  4. Step 4: Simplify right side
    290,190.12x = 65,230,791,204.05
  5. Step 5: Solve for x
    x = 65,230,791,204.05/290,190.12
  6. Step 6: Final answer
    x = 224,786.40

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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.