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Finding the Fourth Proportional to 361,659.60, 498,989.43 and 284,941.01

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Solution

The fourth proportional to 361,659.60, 498,989.43 and 284,941.01 is: 393,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,659.60 : 498,989.43 = 284,941.01 : x
  2. Step 2: Convert to fraction form
    361,659.60/498,989.43 = 284,941.01/x
  3. Step 3: Cross multiply
    361,659.60x = 498,989.43 × 284,941.01
  4. Step 4: Simplify right side
    361,659.60x = 142,182,549,668.58
  5. Step 5: Solve for x
    x = 142,182,549,668.58/361,659.60
  6. Step 6: Final answer
    x = 393,139.16

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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.