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Finding the Fourth Proportional to 243,166.60, 364,531.20 and 154,374.40

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Solution

The fourth proportional to 243,166.60, 364,531.20 and 154,374.40 is: 231,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,166.60 : 364,531.20 = 154,374.40 : x
  2. Step 2: Convert to fraction form
    243,166.60/364,531.20 = 154,374.40/x
  3. Step 3: Cross multiply
    243,166.60x = 364,531.20 × 154,374.40
  4. Step 4: Simplify right side
    243,166.60x = 56,274,285,281.28
  5. Step 5: Solve for x
    x = 56,274,285,281.28/243,166.60
  6. Step 6: Final answer
    x = 231,422.76

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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.