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Finding the Fourth Proportional to 378,048.60, 567,072.90 and 365,218.20

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Solution

The fourth proportional to 378,048.60, 567,072.90 and 365,218.20 is: 547,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,048.60 : 567,072.90 = 365,218.20 : x
  2. Step 2: Convert to fraction form
    378,048.60/567,072.90 = 365,218.20/x
  3. Step 3: Cross multiply
    378,048.60x = 567,072.90 × 365,218.20
  4. Step 4: Simplify right side
    378,048.60x = 207,105,343,806.78
  5. Step 5: Solve for x
    x = 207,105,343,806.78/378,048.60
  6. Step 6: Final answer
    x = 547,827.30

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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.