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Finding the Fourth Proportional to 290,443.02, 435,402.09 and 201,738.30

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Solution

The fourth proportional to 290,443.02, 435,402.09 and 201,738.30 is: 302,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,443.02 : 435,402.09 = 201,738.30 : x
  2. Step 2: Convert to fraction form
    290,443.02/435,402.09 = 201,738.30/x
  3. Step 3: Cross multiply
    290,443.02x = 435,402.09 × 201,738.30
  4. Step 4: Simplify right side
    290,443.02x = 87,837,277,453.05
  5. Step 5: Solve for x
    x = 87,837,277,453.05/290,443.02
  6. Step 6: Final answer
    x = 302,425.16

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1.5x scale

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.