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Finding the Fourth Proportional to 375,536.06, 518,239.88 and 203,455.21

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Solution

The fourth proportional to 375,536.06, 518,239.88 and 203,455.21 is: 280,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,536.06 : 518,239.88 = 203,455.21 : x
  2. Step 2: Convert to fraction form
    375,536.06/518,239.88 = 203,455.21/x
  3. Step 3: Cross multiply
    375,536.06x = 518,239.88 × 203,455.21
  4. Step 4: Simplify right side
    375,536.06x = 105,438,600,007.30
  5. Step 5: Solve for x
    x = 105,438,600,007.30/375,536.06
  6. Step 6: Final answer
    x = 280,768.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.