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Finding the Fourth Proportional to 378,900.80, 567,602.40 and 245,873.60

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Solution

The fourth proportional to 378,900.80, 567,602.40 and 245,873.60 is: 368,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,900.80 : 567,602.40 = 245,873.60 : x
  2. Step 2: Convert to fraction form
    378,900.80/567,602.40 = 245,873.60/x
  3. Step 3: Cross multiply
    378,900.80x = 567,602.40 × 245,873.60
  4. Step 4: Simplify right side
    378,900.80x = 139,558,445,456.64
  5. Step 5: Solve for x
    x = 139,558,445,456.64/378,900.80
  6. Step 6: Final answer
    x = 368,324.49

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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.