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Finding the Fourth Proportional to 149,516.80, 205,913.28 and 146,250.88

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Solution

The fourth proportional to 149,516.80, 205,913.28 and 146,250.88 is: 201,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,516.80 : 205,913.28 = 146,250.88 : x
  2. Step 2: Convert to fraction form
    149,516.80/205,913.28 = 146,250.88/x
  3. Step 3: Cross multiply
    149,516.80x = 205,913.28 × 146,250.88
  4. Step 4: Simplify right side
    149,516.80x = 30,114,998,403.69
  5. Step 5: Solve for x
    x = 30,114,998,403.69/149,516.80
  6. Step 6: Final answer
    x = 201,415.48

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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.