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Finding the Fourth Proportional to 290,468.20, 435,011.10 and 290,468.20

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Solution

The fourth proportional to 290,468.20, 435,011.10 and 290,468.20 is: 435,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,468.20 : 435,011.10 = 290,468.20 : x
  2. Step 2: Convert to fraction form
    290,468.20/435,011.10 = 290,468.20/x
  3. Step 3: Cross multiply
    290,468.20x = 435,011.10 × 290,468.20
  4. Step 4: Simplify right side
    290,468.20x = 126,356,891,197.02
  5. Step 5: Solve for x
    x = 126,356,891,197.02/290,468.20
  6. Step 6: Final answer
    x = 435,011.10

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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.