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Finding the Fourth Proportional to 282,879.04, 390,410.40 and 182,568.64

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Solution

The fourth proportional to 282,879.04, 390,410.40 and 182,568.64 is: 251,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,879.04 : 390,410.40 = 182,568.64 : x
  2. Step 2: Convert to fraction form
    282,879.04/390,410.40 = 182,568.64/x
  3. Step 3: Cross multiply
    282,879.04x = 390,410.40 × 182,568.64
  4. Step 4: Simplify right side
    282,879.04x = 71,276,695,769.86
  5. Step 5: Solve for x
    x = 71,276,695,769.86/282,879.04
  6. Step 6: Final answer
    x = 251,968.81

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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.