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Finding the Fourth Proportional to 375,533.86, 518,236.08 and 203,456.17

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Solution

The fourth proportional to 375,533.86, 518,236.08 and 203,456.17 is: 280,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,533.86 : 518,236.08 = 203,456.17 : x
  2. Step 2: Convert to fraction form
    375,533.86/518,236.08 = 203,456.17/x
  3. Step 3: Cross multiply
    375,533.86x = 518,236.08 × 203,456.17
  4. Step 4: Simplify right side
    375,533.86x = 105,438,327,992.61
  5. Step 5: Solve for x
    x = 105,438,327,992.61/375,533.86
  6. Step 6: Final answer
    x = 280,769.16

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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.