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Finding the Fourth Proportional to 187,179, 280,688.58 and 108,347.64

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Solution

The fourth proportional to 187,179, 280,688.58 and 108,347.64 is: 162,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,179 : 280,688.58 = 108,347.64 : x
  2. Step 2: Convert to fraction form
    187,179/280,688.58 = 108,347.64/x
  3. Step 3: Cross multiply
    187,179x = 280,688.58 × 108,347.64
  4. Step 4: Simplify right side
    187,179x = 30,411,945,217.95
  5. Step 5: Solve for x
    x = 30,411,945,217.95/187,179
  6. Step 6: Final answer
    x = 162,475.20

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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.