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Finding the Fourth Proportional to 288,289.50, 432,435.77 and 189,077.95

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Solution

The fourth proportional to 288,289.50, 432,435.77 and 189,077.95 is: 283,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,289.50 : 432,435.77 = 189,077.95 : x
  2. Step 2: Convert to fraction form
    288,289.50/432,435.77 = 189,077.95/x
  3. Step 3: Cross multiply
    288,289.50x = 432,435.77 × 189,077.95
  4. Step 4: Simplify right side
    288,289.50x = 81,764,068,898.27
  5. Step 5: Solve for x
    x = 81,764,068,898.27/288,289.50
  6. Step 6: Final answer
    x = 283,617.92

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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.