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Finding the Fourth Proportional to 201,000.70, 301,501.05 and 122,139.10

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Solution

The fourth proportional to 201,000.70, 301,501.05 and 122,139.10 is: 183,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,000.70 : 301,501.05 = 122,139.10 : x
  2. Step 2: Convert to fraction form
    201,000.70/301,501.05 = 122,139.10/x
  3. Step 3: Cross multiply
    201,000.70x = 301,501.05 × 122,139.10
  4. Step 4: Simplify right side
    201,000.70x = 36,825,066,896.06
  5. Step 5: Solve for x
    x = 36,825,066,896.06/201,000.70
  6. Step 6: Final answer
    x = 183,208.65

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1.5x scale

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.