Home / 290,040.21-400,253.81-162,715.50

Finding the Fourth Proportional to 290,040.21, 400,253.81 and 162,715.50

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Solution

The fourth proportional to 290,040.21, 400,253.81 and 162,715.50 is: 224,546.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,040.21 : 400,253.81 = 162,715.50 : x
  2. Step 2: Convert to fraction form
    290,040.21/400,253.81 = 162,715.50/x
  3. Step 3: Cross multiply
    290,040.21x = 400,253.81 × 162,715.50
  4. Step 4: Simplify right side
    290,040.21x = 65,127,498,007.48
  5. Step 5: Solve for x
    x = 65,127,498,007.48/290,040.21
  6. Step 6: Final answer
    x = 224,546.44

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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.