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Finding the Fourth Proportional to 375,600.25, 518,328.80 and 203,518.08

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Solution

The fourth proportional to 375,600.25, 518,328.80 and 203,518.08 is: 280,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,600.25 : 518,328.80 = 203,518.08 : x
  2. Step 2: Convert to fraction form
    375,600.25/518,328.80 = 203,518.08/x
  3. Step 3: Cross multiply
    375,600.25x = 518,328.80 × 203,518.08
  4. Step 4: Simplify right side
    375,600.25x = 105,489,282,693.50
  5. Step 5: Solve for x
    x = 105,489,282,693.50/375,600.25
  6. Step 6: Final answer
    x = 280,855.20

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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.