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Finding the Fourth Proportional to 288,282.50, 432,425.28 and 189,070.96

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Solution

The fourth proportional to 288,282.50, 432,425.28 and 189,070.96 is: 283,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,282.50 : 432,425.28 = 189,070.96 : x
  2. Step 2: Convert to fraction form
    288,282.50/432,425.28 = 189,070.96/x
  3. Step 3: Cross multiply
    288,282.50x = 432,425.28 × 189,070.96
  4. Step 4: Simplify right side
    288,282.50x = 81,759,062,817.87
  5. Step 5: Solve for x
    x = 81,759,062,817.87/288,282.50
  6. Step 6: Final answer
    x = 283,607.44

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