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Finding the Fourth Proportional to 409,482.47, 565,086.36 and 228,190.43

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Solution

The fourth proportional to 409,482.47, 565,086.36 and 228,190.43 is: 314,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,482.47 : 565,086.36 = 228,190.43 : x
  2. Step 2: Convert to fraction form
    409,482.47/565,086.36 = 228,190.43/x
  3. Step 3: Cross multiply
    409,482.47x = 565,086.36 × 228,190.43
  4. Step 4: Simplify right side
    409,482.47x = 128,947,301,743.97
  5. Step 5: Solve for x
    x = 128,947,301,743.97/409,482.47
  6. Step 6: Final answer
    x = 314,903.10

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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.