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Finding the Fourth Proportional to 290,480.10, 435,720.15 and 290,480.10

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Solution

The fourth proportional to 290,480.10, 435,720.15 and 290,480.10 is: 435,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,480.10 : 435,720.15 = 290,480.10 : x
  2. Step 2: Convert to fraction form
    290,480.10/435,720.15 = 290,480.10/x
  3. Step 3: Cross multiply
    290,480.10x = 435,720.15 × 290,480.10
  4. Step 4: Simplify right side
    290,480.10x = 126,568,032,744.02
  5. Step 5: Solve for x
    x = 126,568,032,744.02/290,480.10
  6. Step 6: Final answer
    x = 435,720.15

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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.