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Finding the Fourth Proportional to 349,171.20, 522,979.20 and 302,515.20

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Solution

The fourth proportional to 349,171.20, 522,979.20 and 302,515.20 is: 453,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,171.20 : 522,979.20 = 302,515.20 : x
  2. Step 2: Convert to fraction form
    349,171.20/522,979.20 = 302,515.20/x
  3. Step 3: Cross multiply
    349,171.20x = 522,979.20 × 302,515.20
  4. Step 4: Simplify right side
    349,171.20x = 158,209,157,283.84
  5. Step 5: Solve for x
    x = 158,209,157,283.84/349,171.20
  6. Step 6: Final answer
    x = 453,099.10

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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.