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Finding the Fourth Proportional to 378,210.72, 567,383.36 and 125,506.32

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Solution

The fourth proportional to 378,210.72, 567,383.36 and 125,506.32 is: 188,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,210.72 : 567,383.36 = 125,506.32 : x
  2. Step 2: Convert to fraction form
    378,210.72/567,383.36 = 125,506.32/x
  3. Step 3: Cross multiply
    378,210.72x = 567,383.36 × 125,506.32
  4. Step 4: Simplify right side
    378,210.72x = 71,210,197,542.84
  5. Step 5: Solve for x
    x = 71,210,197,542.84/378,210.72
  6. Step 6: Final answer
    x = 188,281.81

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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.