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Finding the Fourth Proportional to 201,800.30, 302,700.45 and 127,150.70

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Solution

The fourth proportional to 201,800.30, 302,700.45 and 127,150.70 is: 190,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,800.30 : 302,700.45 = 127,150.70 : x
  2. Step 2: Convert to fraction form
    201,800.30/302,700.45 = 127,150.70/x
  3. Step 3: Cross multiply
    201,800.30x = 302,700.45 × 127,150.70
  4. Step 4: Simplify right side
    201,800.30x = 38,488,574,107.82
  5. Step 5: Solve for x
    x = 38,488,574,107.82/201,800.30
  6. Step 6: Final answer
    x = 190,726.05

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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.