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Finding the Fourth Proportional to 199,557.40, 299,336.10 and 160,191.40

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Solution

The fourth proportional to 199,557.40, 299,336.10 and 160,191.40 is: 240,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,557.40 : 299,336.10 = 160,191.40 : x
  2. Step 2: Convert to fraction form
    199,557.40/299,336.10 = 160,191.40/x
  3. Step 3: Cross multiply
    199,557.40x = 299,336.10 × 160,191.40
  4. Step 4: Simplify right side
    199,557.40x = 47,951,068,929.54
  5. Step 5: Solve for x
    x = 47,951,068,929.54/199,557.40
  6. Step 6: Final answer
    x = 240,287.10

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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.