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Finding the Fourth Proportional to 243,296.73, 364,686.75 and 143,503.92

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Solution

The fourth proportional to 243,296.73, 364,686.75 and 143,503.92 is: 215,103.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,296.73 : 364,686.75 = 143,503.92 : x
  2. Step 2: Convert to fraction form
    243,296.73/364,686.75 = 143,503.92/x
  3. Step 3: Cross multiply
    243,296.73x = 364,686.75 × 143,503.92
  4. Step 4: Simplify right side
    243,296.73x = 52,333,978,197.06
  5. Step 5: Solve for x
    x = 52,333,978,197.06/243,296.73
  6. Step 6: Final answer
    x = 215,103.50

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1.5x scale

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.