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Finding the Fourth Proportional to 393,482.08, 543,006.96 and 214,637.92

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Solution

The fourth proportional to 393,482.08, 543,006.96 and 214,637.92 is: 296,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,482.08 : 543,006.96 = 214,637.92 : x
  2. Step 2: Convert to fraction form
    393,482.08/543,006.96 = 214,637.92/x
  3. Step 3: Cross multiply
    393,482.08x = 543,006.96 × 214,637.92
  4. Step 4: Simplify right side
    393,482.08x = 116,549,884,439.92
  5. Step 5: Solve for x
    x = 116,549,884,439.92/393,482.08
  6. Step 6: Final answer
    x = 296,201.25

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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.