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Finding the Fourth Proportional to 347,477.70, 521,216.55 and 341,572.80

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Solution

The fourth proportional to 347,477.70, 521,216.55 and 341,572.80 is: 512,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,477.70 : 521,216.55 = 341,572.80 : x
  2. Step 2: Convert to fraction form
    347,477.70/521,216.55 = 341,572.80/x
  3. Step 3: Cross multiply
    347,477.70x = 521,216.55 × 341,572.80
  4. Step 4: Simplify right side
    347,477.70x = 178,033,396,389.84
  5. Step 5: Solve for x
    x = 178,033,396,389.84/347,477.70
  6. Step 6: Final answer
    x = 512,359.20

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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.