Home / 378,127.32-566,656.36-209,721.84

Finding the Fourth Proportional to 378,127.32, 566,656.36 and 209,721.84

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Solution

The fourth proportional to 378,127.32, 566,656.36 and 209,721.84 is: 314,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,127.32 : 566,656.36 = 209,721.84 : x
  2. Step 2: Convert to fraction form
    378,127.32/566,656.36 = 209,721.84/x
  3. Step 3: Cross multiply
    378,127.32x = 566,656.36 × 209,721.84
  4. Step 4: Simplify right side
    378,127.32x = 118,840,214,466.90
  5. Step 5: Solve for x
    x = 118,840,214,466.90/378,127.32
  6. Step 6: Final answer
    x = 314,286.24

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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.