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Finding the Fourth Proportional to 358,891.40, 538,077.90 and 201,168.20

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Solution

The fourth proportional to 358,891.40, 538,077.90 and 201,168.20 is: 301,607.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,891.40 : 538,077.90 = 201,168.20 : x
  2. Step 2: Convert to fraction form
    358,891.40/538,077.90 = 201,168.20/x
  3. Step 3: Cross multiply
    358,891.40x = 538,077.90 × 201,168.20
  4. Step 4: Simplify right side
    358,891.40x = 108,244,162,602.78
  5. Step 5: Solve for x
    x = 108,244,162,602.78/358,891.40
  6. Step 6: Final answer
    x = 301,607.01

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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.