Home / 378,130.32-566,660.86-209,724.84

Finding the Fourth Proportional to 378,130.32, 566,660.86 and 209,724.84

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Solution

The fourth proportional to 378,130.32, 566,660.86 and 209,724.84 is: 314,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,130.32 : 566,660.86 = 209,724.84 : x
  2. Step 2: Convert to fraction form
    378,130.32/566,660.86 = 209,724.84/x
  3. Step 3: Cross multiply
    378,130.32x = 566,660.86 × 209,724.84
  4. Step 4: Simplify right side
    378,130.32x = 118,842,858,197.76
  5. Step 5: Solve for x
    x = 118,842,858,197.76/378,130.32
  6. Step 6: Final answer
    x = 314,290.74

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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.