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Finding the Fourth Proportional to 358,952.20, 538,233.90 and 148,611.40

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Solution

The fourth proportional to 358,952.20, 538,233.90 and 148,611.40 is: 222,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,952.20 : 538,233.90 = 148,611.40 : x
  2. Step 2: Convert to fraction form
    358,952.20/538,233.90 = 148,611.40/x
  3. Step 3: Cross multiply
    358,952.20x = 538,233.90 × 148,611.40
  4. Step 4: Simplify right side
    358,952.20x = 79,987,693,406.46
  5. Step 5: Solve for x
    x = 79,987,693,406.46/358,952.20
  6. Step 6: Final answer
    x = 222,836.62

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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.