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Finding the Fourth Proportional to 217,099.95, 299,487.71 and 148,137.69

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Solution

The fourth proportional to 217,099.95, 299,487.71 and 148,137.69 is: 204,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,099.95 : 299,487.71 = 148,137.69 : x
  2. Step 2: Convert to fraction form
    217,099.95/299,487.71 = 148,137.69/x
  3. Step 3: Cross multiply
    217,099.95x = 299,487.71 × 148,137.69
  4. Step 4: Simplify right side
    217,099.95x = 44,365,416,802.10
  5. Step 5: Solve for x
    x = 44,365,416,802.10/217,099.95
  6. Step 6: Final answer
    x = 204,354.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.