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Finding the Fourth Proportional to 243,356.80, 364,973.58 and 72,539.10

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Solution

The fourth proportional to 243,356.80, 364,973.58 and 72,539.10 is: 108,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,356.80 : 364,973.58 = 72,539.10 : x
  2. Step 2: Convert to fraction form
    243,356.80/364,973.58 = 72,539.10/x
  3. Step 3: Cross multiply
    243,356.80x = 364,973.58 × 72,539.10
  4. Step 4: Simplify right side
    243,356.80x = 26,474,853,192.11
  5. Step 5: Solve for x
    x = 26,474,853,192.11/243,356.80
  6. Step 6: Final answer
    x = 108,790.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.